-
Notifications
You must be signed in to change notification settings - Fork 144
/
CMakeLists.txt
1103 lines (955 loc) · 41.7 KB
/
CMakeLists.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#------------------------------------------------------------------------------#
# Copyright 2024 Kitware, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#------------------------------------------------------------------------------#
cmake_minimum_required(VERSION 3.16 FATAL_ERROR)
#------------------------------------------------------------------------------#
# Version information
#------------------------------------------------------------------------------#
# the Legion/Realm version string is set by the first of these that works:
# 1) a defined value for the cmake Legion_VERSION variable
# 2) the output of `git describe`, if successful
# 3) the contents of 'VERSION' (at the root of the source tree), if available
# 4) "unknown", if all else fails
set(Legion_VERSION "" CACHE STRING "string to use for Legion/Realm version")
if(Legion_VERSION STREQUAL "")
find_package(Git)
if(GIT_FOUND)
execute_process(COMMAND ${GIT_EXECUTABLE} describe --dirty --match legion*
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
RESULT_VARIABLE _git_result
OUTPUT_VARIABLE Legion_VERSION
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
else()
set(_git_result -1)
endif()
if(_git_result EQUAL 0)
message(STATUS "Version string from git: ${Legion_VERSION}")
else()
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/VERSION)
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/VERSION _file_contents)
string(STRIP "${_file_contents}" Legion_VERSION)
unset(_file_contents)
message(STATUS "Version string from VERSION file: ${Legion_VERSION}")
else()
set(Legion_VERSION "unknown")
message(WARNING "Could not determine version string - using 'unknown'")
endif()
endif()
unset(_git_result)
endif()
# these are the actual variables that are written into the headers
set(LEGION_VERSION "${Legion_VERSION}")
set(REALM_VERSION "${Legion_VERSION}")
# Parse the major.minor.patch from (potentially non-semver) Legion_VERSION
if(Legion_VERSION MATCHES "([0-9]+)\\.([0-9]+)\\.([0-9]+)") # get the CMake version
set(Legion_VERSION_MAJOR "${CMAKE_MATCH_1}")
set(Legion_VERSION_MINOR "${CMAKE_MATCH_2}")
set(Legion_VERSION_PATCH "${CMAKE_MATCH_3}")
if(NOT Legion_VERSION_MAJOR VERSION_EQUAL 0)
string(REGEX REPLACE "^0+" "" Legion_VERSION_MAJOR "${Legion_VERSION_MAJOR}")
endif()
if(NOT Legion_VERSION_MINOR VERSION_EQUAL 0)
string(REGEX REPLACE "^0+" "" Legion_VERSION_MINOR "${Legion_VERSION_MINOR}")
endif()
if(NOT Legion_VERSION_PATCH VERSION_EQUAL 0)
string(REGEX REPLACE "^0+" "" Legion_VERSION_PATCH "${Legion_VERSION_PATCH}")
endif()
set(Legion_VERSION "${Legion_VERSION_MAJOR}.${Legion_VERSION_MINOR}.${Legion_VERSION_PATCH}")
else()
message(WARNING "Could not parse semver-compatible version from Legion version string '${Legion_VERSION}' - setting cmake package version to '0.0.0'")
set(Legion_VERSION "0.0.0")
endif()
project(Legion VERSION ${Legion_VERSION})
include(CMakeDependentOption)
#------------------------------------------------------------------------------#
# Some boilerplate to setup nice output directories
#------------------------------------------------------------------------------#
#for multilib distros
include(GNUInstallDirs)
list(INSERT CMAKE_MODULE_PATH 0 "${Legion_SOURCE_DIR}/cmake")
if(NOT CMAKE_ARCHIVE_OUTPUT_DIRECTORY)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${Legion_BINARY_DIR}/lib)
endif()
if(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${Legion_BINARY_DIR}/lib)
endif()
if(NOT CMAKE_RUNTIME_OUTPUT_DIRECTORY)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${Legion_BINARY_DIR}/bin)
endif()
#library api version, bump from time to time
set(SOVERSION 1)
set(INSTALL_SUFFIX "" CACHE STRING "Suffix to add to installed libraries and binaries")
#------------------------------------------------------------------------------#
# C++ standard version
#------------------------------------------------------------------------------#
if(CMAKE_CXX_STANDARD)
# Legion requires a minimum of C++ 17
if(CMAKE_CXX_STANDARD LESS 17 OR CMAKE_CXX_STANDARD EQUAL 98)
message(FATAL_ERROR "Legion requires at least C++ 17")
endif()
else()
set(CMAKE_CXX_STANDARD 17)
endif()
set(CMAKE_CXX_STANDARD_REQUIRED ON)
#------------------------------------------------------------------------------#
# Build type and shared vs static library
#------------------------------------------------------------------------------#
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
set(CMAKE_BUILD_TYPE Debug CACHE STRING "Choose the type of build" FORCE)
endif(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
if (CMAKE_BUILD_TYPE AND ( CMAKE_BUILD_TYPE STREQUAL "Debug"))
# define variable for realm_defines.h
set(DEBUG_REALM ON)
# define variable for legion_defines.h
set(DEBUG_LEGION ON)
endif()
set(BUILD_SHARED_LIBS OFF CACHE BOOL "Whether or not to build shared libraries instead of static")
#------------------------------------------------------------------------------#
# Architecture
#------------------------------------------------------------------------------#
if(BUILD_MARCH AND BUILD_MCPU)
message(FATAL_ERROR "BUILD_MARCH and BUILD_MCPU are incompatible")
endif()
# Try -march first. On platforms that don't support it, GCC will issue
# a hard error, so we'll know not to use it.
# Default is "native", but explicitly setting BUILD_MARCH="" disables use of
# the flag
if(BUILD_MARCH)
set(INTERNAL_BUILD_MARCH ${BUILD_MARCH})
elseif(NOT DEFINED BUILD_MARCH)
set(INTERNAL_BUILD_MARCH "native")
endif()
include(CheckCXXCompilerFlag)
if(INTERNAL_BUILD_MARCH)
check_cxx_compiler_flag("-march=${INTERNAL_BUILD_MARCH}" COMPILER_SUPPORTS_MARCH)
if(COMPILER_SUPPORTS_MARCH)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=${INTERNAL_BUILD_MARCH}")
elseif(BUILD_MARCH)
message(FATAL_ERROR "The flag -march=${INTERNAL_BUILD_MARCH} is not supported by the compiler")
else()
unset(INTERNAL_BUILD_MARCH)
endif()
endif()
# Try -mcpu. We do this second because it is deprecated on x86, but
# GCC won't issue a hard error, so we can't tell if it worked or not.
if (NOT INTERNAL_BUILD_MARCH AND NOT DEFINED BUILD_MARCH)
if(BUILD_MCPU)
set(INTERNAL_BUILD_MCPU ${BUILD_MCPU})
else()
set(INTERNAL_BUILD_MCPU "native")
endif()
check_cxx_compiler_flag("-mcpu=${INTERNAL_BUILD_MCPU}" COMPILER_SUPPORTS_MCPU)
if(COMPILER_SUPPORTS_MCPU)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=${INTERNAL_BUILD_MCPU}")
elseif(BUILD_MCPU)
message(FATAL_ERROR "The flag -mcpu=${INTERNAL_BUILD_MCPU} is not supported by the compiler")
else()
unset(INTERNAL_BUILD_MCPU)
endif()
endif()
# Add flags for Power architectures
check_cxx_compiler_flag("-maltivec -Werror" COMPILER_SUPPORTS_MALTIVEC)
if(COMPILER_SUPPORTS_MALTIVEC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maltivec")
endif()
check_cxx_compiler_flag("-mabi=altivec -Werror" COMPILER_SUPPORTS_MABI_ALTIVEC)
if(COMPILER_SUPPORTS_MABI_ALTIVEC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mabi=altivec")
endif()
check_cxx_compiler_flag("-mvsx -Werror" COMPILER_SUPPORTS_MVSX)
if(COMPILER_SUPPORTS_MVSX)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mvsx")
endif()
# detect use of the cxx_defcheck wrapper and enable build checks
check_cxx_compiler_flag("--defcheck __test__" COMPILER_SUPPORTS_DEFCHECK)
# task registration across nodes often relies on being able to map function
# pointers back to symbol names, so ask cmake to export symbols in binaries
set(CMAKE_ENABLE_EXPORTS ON)
#------------------------------------------------------------------------------#
# Optimizations
#------------------------------------------------------------------------------#
# For now we want the optimization flags to match on both normal make and cmake
# builds so we override the cmake defaults here for release, this changes
# -O3 to -O2 and removes -DNDEBUG
set(CMAKE_CXX_FLAGS_RELEASE "-O2")
set(CMAKE_CUDA_FLAGS_RELEASE "-O2")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g")
set(CMAKE_CUDA_FLAGS_RELWITHDEBINFO "-O2 -g")
# add build types for thread/ub sanitizer goodness
set(CMAKE_CXX_FLAGS_TSAN
"${CMAKE_CXX_FLAGS_DEBUG} -fsanitize=thread -DTSAN_ENABLED"
CACHE STRING "additional C++ compiler flags for thread sanitizer" FORCE)
set(CMAKE_EXE_LINKER_FLAGS_TSAN
"${CMAKE_EXE_LINKER_FLAGS_DEBUG} -fsanitize=thread"
CACHE STRING "additional linker flags for thread sanitizer" FORCE)
set(CMAKE_CXX_FLAGS_UBSAN
"${CMAKE_CXX_FLAGS_DEBUG} -fsanitize=undefined"
CACHE STRING "additional C++ compiler flags for UB sanitizer" FORCE)
set(CMAKE_EXE_LINKER_FLAGS_UBSAN
"${CMAKE_EXE_LINKER_FLAGS_DEBUG} -fsanitize=undefined"
CACHE STRING "additional linker flags for UB sanitizer" FORCE)
set(CMAKE_CXX_FLAGS_ASAN
"${CMAKE_CXX_FLAGS_DEBUG} -fsanitize=address -DASAN_ENABLED"
CACHE STRING "additional C++ compiler flags for address sanitizer" FORCE)
set(CMAKE_EXE_LINKER_FLAGS_ASAN
"${CMAKE_EXE_LINKER_FLAGS_DEBUG} -fsanitize=address"
CACHE STRING "additional linker flags for address sanitizer" FORCE)
# if requested (and we know how to) make any warnings during the build fatal
option(Legion_BUILD_WARN_AS_ERROR "Consider warnings during build of Legion to be fatal errors" OFF)
if(Legion_BUILD_WARN_AS_ERROR)
check_cxx_compiler_flag("-Wall -Werror" COMPILER_SUPPORTS_WALL_WERROR)
if(COMPILER_SUPPORTS_WALL_WERROR)
set(CXX_BUILD_WARNING_FLAGS -Wall -Werror)
else()
message(FATAL_ERROR "cannot determine how to convert warnings to errors in C++ compiler")
endif()
else()
set(CXX_BUILD_WARNING_FLAGS "")
endif()
if ((MSVC) AND (MSVC_VERSION GREATER_EQUAL 1914))
check_cxx_compiler_flag("/Zc:__cplusplus" COMPILER_SUPPORTS_ZC_CPLUSPLUS)
if(COMPILER_SUPPORTS_ZC_CPLUSPLUS)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Zc:__cplusplus")
else()
message(FATAL_ERROR "compiler (which appears to be msvc) did not accept /Zc:__cplusplus flag")
endif()
endif()
include(CheckFunctionExists)
#------------------------------------------------------------------------------#
# Documentation options
#------------------------------------------------------------------------------#
option(Legion_BUILD_DOCS "Build documentation" OFF)
cmake_dependent_option(Legion_BUILD_INTERNAL_DOCS "Build documentation" OFF
"Legion_BUILD_DOCS" OFF)
if (Legion_BUILD_DOCS)
find_package(Doxygen REQUIRED)
set(DOXYGEN_GENERATE_HTML YES)
set(DOXYGEN_EXTRACT_ALL YES)
set(DOXYGEN_SEARCH_INCLUDES YES)
set(DOXYGEN_ENABLE_PREPROCESSING YES)
set(DOXYGEN_RECURSIVE YES)
set(DOXYGEN_HTML_HEADER ${CMAKE_CURRENT_SOURCE_DIR}/doxygen/header.html)
set(DOXYGEN_HTML_FOOTER ${CMAKE_CURRENT_SOURCE_DIR}/doxygen/footer.html)
set(DOXYGEN_HTML_EXTRA_STYLESHEET ${CMAKE_CURRENT_SOURCE_DIR}/doxygen/customdoxygen.css)
if (Legion_BUILD_INTERNAL_DOCS)
set(DOXYGEN_INTERNAL_DOCS ${Legion_BUILD_INTERNAL_DOCS})
set(DOXYGEN_ENABLED_SECTIONS INTERNAL)
endif()
endif()
#------------------------------------------------------------------------------#
# Minimum log level
#------------------------------------------------------------------------------#
set(Legion_OUTPUT_LEVEL "DEBUG" CACHE STRING "Compile time logging level")
set_property(CACHE Legion_OUTPUT_LEVEL PROPERTY STRINGS SPEW DEBUG INFO PRINT WARNING ERROR FATAL NONE)
# define variable for realm_defines.h
set(COMPILE_TIME_MIN_LEVEL LEVEL_${Legion_OUTPUT_LEVEL})
#------------------------------------------------------------------------------#
# OpenMP
#------------------------------------------------------------------------------#
option(Legion_USE_OpenMP "Use OpenMP" OFF)
if(Legion_USE_OpenMP)
option(Legion_OpenMP_SYSTEM_RUNTIME "Use system's OpenMP runtime instead of internal Realm version" OFF)
if(Legion_OpenMP_SYSTEM_RUNTIME)
find_package(OpenMP REQUIRED)
endif()
option(Legion_OpenMP_GOMP_SUPPORT "Enable GOMP support for OpenMP" ON)
option(Legion_OpenMP_KMP_SUPPORT "Enable KMP support for OpenMP" ON)
# define variable for realm_defines.h
set(REALM_USE_OPENMP ON)
if(Legion_OpenMP_SYSTEM_RUNTIME)
set(REALM_OPENMP_SYSTEM_RUNTIME ON)
endif()
if(Legion_OpenMP_GOMP_SUPPORT)
set(REALM_OPENMP_GOMP_SUPPORT ON)
endif()
if(Legion_OpenMP_KMP_SUPPORT)
set(REALM_OPENMP_KMP_SUPPORT ON)
endif()
endif()
#------------------------------------------------------------------------------#
# Python
#------------------------------------------------------------------------------#
option(Legion_USE_Python "Use Python" OFF)
if(Legion_USE_Python)
find_package(Python3 REQUIRED)
# Unset empty Python3_ variables
get_cmake_property(_variableNames VARIABLES)
foreach (_variableName ${_variableNames})
if ((_variableName MATCHES "Python3_") AND (${_variableName} STREQUAL ""))
unset(${_variableName})
endif()
endforeach()
# define variables for realm_defines.h
set(REALM_USE_PYTHON ON)
endif()
set(BINDINGS_DEFAULT_MODULE "" CACHE STRING "module to load by default in Python bindings, if any")
#------------------------------------------------------------------------------#
# Kokkos configuration
#------------------------------------------------------------------------------#
option(Legion_USE_Kokkos "Enable support for the Kokkos runtime" OFF)
if(Legion_USE_Kokkos)
# cmake uses -DKokkos_DIR=.../lib/cmake to look in non-standard locations
#
# starting with Kokkos 3.3.0, including a cuda-enabled Kokkos will mess with
# the global compilation settings unless you ask it not to by requesting
# the 'separable_compilation' component
find_package(Kokkos REQUIRED OPTIONAL_COMPONENTS separable_compilation)
message(STATUS "Kokkos version: ${Kokkos_VERSION}")
# in order to build using Kokkos' exported compile options, we need to use
# the same compiler - newer versions of Kokkos will tell us, but for older
# versions, we need it from the configuration or the environment
if(Kokkos_CXX_COMPILER)
set(KOKKOS_CXX_COMPILER ${Kokkos_CXX_COMPILER} CACHE STRING
"C++ compiler used by Kokkos")
else()
set(KOKKOS_CXX_COMPILER $ENV{KOKKOS_CXX_COMPILER} CACHE STRING
"C++ compiler used by Kokkos")
endif()
if(NOT KOKKOS_CXX_COMPILER)
message(FATAL_ERROR "to build correctly with Kokkos, the exact compiler used in the Kokkos build (typically set via CXX=... or -DCMAKE_CXX_COMPILER=...) must be provided in KOKKOS_CXX_COMPILER (either on the command line or from the environment)")
endif()
set(REALM_USE_KOKKOS ON)
endif()
#------------------------------------------------------------------------------#
# libdl configuration
#------------------------------------------------------------------------------#
# NOTE: although the name of the variable is "libdl", this is dynamic linking
# support on any system, even if it doesn't have a libdl
option(Legion_USE_LIBDL "Enable run-time support for dynamic shared objects" ON)
if(Legion_USE_LIBDL)
# define variable for legion_defines.h
set(LEGION_USE_LIBDL ON)
# define variable for realm_defines.h
set(REALM_USE_LIBDL ON)
endif()
#------------------------------------------------------------------------------#
# network interface configuration
#------------------------------------------------------------------------------#
set(Legion_NETWORKS "" CACHE STRING "Network backend(s) to use")
separate_arguments(Legion_NETWORKS)
# compatibility mode - Legion_USE_GASNet==ON -> Legion_NETWORKS=gasnet1
option(Legion_USE_GASNet "Enable the distributed GASNet backend" OFF)
if(Legion_USE_GASNet)
list(APPEND Legion_NETWORKS gasnet1)
endif()
#------------------------------------------------------------------------------#
# GASNet configuration
#------------------------------------------------------------------------------#
if("${Legion_NETWORKS}" MATCHES ".*gasnet(1|ex).*")
option(Legion_EMBED_GASNet "Embed a custom GASNet build in Realm library" OFF)
if(Legion_EMBED_GASNet)
if(NOT GASNet_CONDUIT)
message(FATAL_ERROR "GASNet_CONDUIT must be set when using an embedded GASNet build")
endif()
# an embedded GASNet uses the stanfordlegion/gasnet helper repository for
# a build wrapper and curated-for-Legion GASNet configurations - it can
# be fetched from github directly (the default) or use a local (and
# perhaps modified) clone of the repository
set(Legion_EMBED_GASNet_GITREPO
"https://github.com/StanfordLegion/gasnet.git"
CACHE STRING "URL for cloning StanfordLegion/gasnet repository")
set(GASNet_GITREPO ${Legion_EMBED_GASNet_GITREPO})
set(Legion_EMBED_GASNet_GITREF
"d7cc06907cc66e2a3f968e19ea17a80650b16a3b" # master as of 2024-07-19
CACHE STRING "Branch/tag/commit to use from StanfordLegion/gasnet repository")
set(GASNet_GITREF ${Legion_EMBED_GASNet_GITREF})
set(Legion_EMBED_GASNet_LOCALSRC "" CACHE STRING "Path to local clone of StanfordLegion/gasnet repository")
set(GASNet_LOCALSRC ${Legion_EMBED_GASNet_LOCALSRC})
set(Legion_EMBED_GASNet_VERSION "" CACHE STRING "Override GASNet version to build")
set(GASNet_VERSION ${Legion_EMBED_GASNet_VERSION})
set(Legion_EMBED_GASNet_CONFIGURE_ARGS "" CACHE STRING "Extra configuration arguments for GASNet")
set(GASNet_CONFIGURE_ARGS ${Legion_EMBED_GASNet_CONFIGURE_ARGS})
option(Legion_EMBED_GASNet_ENABLE_GPU_MEMORY_KINDS "Enable GASNet memory kinds when Realm has been built with CUDA/HIP/etc." ON)
else()
set(GASNet_THREADING par)
set(GASNet_PREFERRED_CONDUITS aries gemini ibv)
find_package(GASNet REQUIRED)
if(NOT GASNet_THREADING STREQUAL "par")
message(FATAL_ERROR "GASNet threading mode \"${GASNet_THREADING}\" is not currently supported by Legion")
endif()
endif()
# define variable for realm_defines.h
if("${Legion_NETWORKS}" MATCHES .*gasnetex.*)
set(REALM_USE_GASNETEX ON)
# wether to build gasnetex wrapper as a standalone library
option(Legion_USE_GASNETEX_WRAPPER "Enable gasnetex wrapper" OFF)
if (Legion_USE_GASNETEX_WRAPPER)
set(REALM_USE_GASNETEX_WRAPPER ON)
endif()
else()
set(REALM_USE_GASNET1 ON)
endif()
string(TOUPPER ${GASNet_CONDUIT} CONDUIT)
set(GASNET_CONDUIT_${CONDUIT} ON)
# conduits other than udp support MPI interop
if(NOT ${GASNet_CONDUIT} STREQUAL "udp")
set(Legion_MPI_INTEROP ON)
endif()
endif()
#------------------------------------------------------------------------------#
# MPI configuration
#------------------------------------------------------------------------------#
if("${Legion_NETWORKS}" MATCHES .*mpi.*)
find_package(MPI REQUIRED)
# define variable for realm_defines.h
set(REALM_USE_MPI ON)
set(Legion_MPI_INTEROP ON)
endif()
#------------------------------------------------------------------------------#
# UCX configuration
#------------------------------------------------------------------------------#
if("${Legion_NETWORKS}" MATCHES .*ucx.*)
if (NOT REALM_USE_LIBDL)
message(FATAL_ERROR "UCX backend requires run-time support for dynamic shared objects")
endif()
find_package(ucx 1.14.0 REQUIRED CONFIG)
message(STATUS "Found UCX: ${UCX_INCLUDE_DIRS} ${UCX_LIBRARIES})")
find_package(MPI REQUIRED) # for MPI bootstrap plugin
# define variable for realm_defines.h
set(REALM_USE_UCX ON)
set(Legion_MPI_INTEROP ON)
option(Legion_UCX_DYNAMIC_LOAD "Load ucx libraries at runtime" OFF)
if(Legion_UCX_DYNAMIC_LOAD)
set(REALM_UCX_DYNAMIC_LOAD ON)
endif()
endif()
if (MPI_FOUND)
list(APPEND CMAKE_REQUIRED_LIBRARIES ${MPI_mpi_LIBRARY})
# Check if MPI has comm split type available
check_function_exists(MPI_Comm_split_type REALM_MPI_HAS_COMM_SPLIT_TYPE)
list(POP_BACK CMAKE_REQUIRED_LIBRARIES)
endif()
#------------------------------------------------------------------------------#
# GPU configuration
#------------------------------------------------------------------------------#
option(Legion_USE_CUDA "Enable support for the CUDA runtime" OFF)
option(Legion_USE_HIP "Enable support for the HIP runtime on AMD/NVIDIA GPU" OFF)
set(Legion_HIP_TARGETS "ROCM" "CUDA")
mark_as_advanced(Legion_HIP_TARGETS)
set(Legion_HIP_TARGET "ROCM" CACHE STRING "Select HIP target ${Legion_HIP_TARGETS}")
set_property(CACHE Legion_HIP_TARGET PROPERTY STRINGS ${Legion_HIP_TARGETS})
if(Legion_USE_CUDA OR Legion_USE_HIP)
option(Legion_GPU_REDUCTIONS "Use tasks to perform reductions on GPU" OFF)
# define variable for legion_defines.h
set(LEGION_GPU_REDUCTIONS ${Legion_GPU_REDUCTIONS})
if(Legion_USE_CUDA OR (Legion_HIP_TARGET STREQUAL "CUDA"))
include(cmake/cuda_helpers.cmake)
# Read CMAKE_CUDA_STANDARD or CMAKE_CXX_STANDARD and store in Legion_CUDA_STANDARD
infer_cuda_standard(Legion_CUDA_STANDARD)
set(Legion_CUDA_STANDARD "${Legion_CUDA_STANDARD}" CACHE STRING
"The CUDA C++ standard to use (17, 20, etc.)"
FORCE)
# Enable the CUDA language and find the CUDA toolkit
enable_cuda_language_and_find_cuda_toolkit()
# Populate the Legion_CUDA_ARCH list, defaulting to all major GPU archs if unset
populate_cuda_archs_list(Legion_CUDA_ARCH)
set(Legion_CUDA_ARCH "${Legion_CUDA_ARCH}" CACHE STRING
"Comma (or semicolon) separated list of CUDA architectures to build for (e.g. 60,70,80,90)"
FORCE)
#------------------------------------------------------------------------------#
# NVTX configuration
#------------------------------------------------------------------------------#
option(Legion_USE_NVTX "Enable profiling using NVTX" OFF)
# define variable for realm_defines.h
set(REALM_USE_NVTX ${Legion_USE_NVTX})
mark_as_advanced(REALM_USE_NVTX)
# Find the CUDA toolkit if we haven't already.
if(NOT CUDAToolkit_FOUND)
find_package(CUDAToolkit REQUIRED)
endif()
if("${CUDA_cuda_driver_LIBRARY}" MATCHES ".*stubs.*")
get_filename_component(_cuda_stubs_path "${CUDA_cuda_driver_LIBRARY}" DIRECTORY)
list(APPEND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${_cuda_stubs_path}")
unset(_cuda_stubs_path)
endif()
# Install the vendored FindCUDAToolkit.cmake to support CMake < v3.19
install(FILES ${Legion_SOURCE_DIR}/cmake/FindCUDAToolkit.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake
)
install(FILES ${Legion_SOURCE_DIR}/cmake/newcmake/FindCUDAToolkit.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake/newcmake
)
endif()
endif()
#------------------------------------------------------------------------------#
# CUDA configuration
#------------------------------------------------------------------------------#
if(Legion_USE_CUDA)
option(Legion_CUDA_DYNAMIC_LOAD "Load CUDA libraries at runtime" OFF)
# The default is to hijack unless Kokkos interop is enabled, or network is UCX.
if(Legion_USE_Kokkos OR "${Legion_NETWORKS}" MATCHES .*ucx.*)
option(Legion_HIJACK_CUDART "Hijack and rewrite application calls into the CUDA runtime" OFF)
else()
option(Legion_HIJACK_CUDART "Hijack and rewrite application calls into the CUDA runtime" ON)
endif()
if(Legion_CUDA_DYNAMIC_LOAD AND Legion_HIJACK_CUDART)
# not compatible with runtime hijack
message(FATAL_ERROR "Dynamic CUDA library loading (Legion_CUDA_DYNAMIC_LOAD) is not compatible with CUDA runtime hijack (Legion_HIJACK_CUDART)")
endif()
# define variable for legion_defines.h
set(LEGION_USE_CUDA ON)
# define variable for realm_defines.h
set(REALM_USE_CUDA ON)
set(REALM_CUDA_DYNAMIC_LOAD ${Legion_CUDA_DYNAMIC_LOAD})
set(REALM_USE_CUDART_HIJACK ${Legion_HIJACK_CUDART})
endif()
#------------------------------------------------------------------------------#
# HIP configuration
#------------------------------------------------------------------------------#
if(Legion_USE_HIP)
set(HIPCC_FLAGS ${HIPCC_FLAGS})
if(Legion_HIP_TARGET STREQUAL "CUDA")
list(APPEND HIPCC_FLAGS -D__HIP_PLATFORM_NVCC__)
elseif(Legion_HIP_TARGET STREQUAL "ROCM")
# find the hip library
find_package(HIP REQUIRED)
set(Legion_HIP_ARCH "" CACHE STRING "Comma-separated list of HIP architectures to build for (e.g. gfx906,gfx908)")
set(HIPCC_FLAGS "-fno-strict-aliasing")
if("${Legion_HIP_ARCH}" STREQUAL "")
set(HIP_GENCODE "")
else()
set(HIP_GENCODE "--offload-arch=${Legion_HIP_ARCH}")
endif()
if(BUILD_SHARED_LIBS)
list(APPEND HIPCC_FLAGS -fPIC)
endif()
list(APPEND HIPCC_FLAGS -std=c++${CMAKE_CXX_STANDARD})
install(FILES ${Legion_SOURCE_DIR}/cmake/FindHIP.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake
)
endif()
option(Legion_HIJACK_HIP "Enable HIJACK HIP" ON)
# define variable for legion_defines.h
set(LEGION_USE_HIP ON)
# define variable for realm_defines.h
set(REALM_USE_HIP ON)
set(REALM_USE_HIP_HIJACK ${Legion_HIJACK_HIP})
endif()
#------------------------------------------------------------------------------#
# LLVM configuration
#------------------------------------------------------------------------------#
option(Legion_USE_LLVM "Use LLVM JIT operations" OFF)
option(Legion_ALLOW_MISSING_LLVM_LIBS "Allow LLVM libraries to be missing at runtime" OFF)
option(Legion_LINK_LLVM_LIBS "Link LLVM libraries into Realm" ON)
if(Legion_USE_LLVM)
set(Legion_LLVM_COMPONENTS irreader jit mcjit x86)
find_package(LLVM REQUIRED COMPONENTS ${Legion_LLVM_COMPONENTS})
install(FILES ${Legion_SOURCE_DIR}/cmake/FindLLVM.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake
)
# define variables for realm_defines.h
set(REALM_USE_LLVM ON)
if(Legion_ALLOW_MISSING_LLVM_LIBS)
set(REALM_ALLOW_MISSING_LLVM_LIBS ON)
endif()
endif()
#------------------------------------------------------------------------------#
# HDF5 configuration
#------------------------------------------------------------------------------#
option(Legion_USE_HDF5 "Enable support for HDF5" OFF)
if(Legion_USE_HDF5)
find_package(HDF5 REQUIRED COMPONENTS C)
# define variable for both legion_defines.h and realm_defines.h
set(LEGION_USE_HDF5 ON)
set(REALM_USE_HDF5 ON)
endif()
#------------------------------------------------------------------------------#
# HWLOC configuration
#------------------------------------------------------------------------------#
option(Legion_USE_HWLOC "Use hwloc for topology awareness" OFF)
if(Legion_USE_HWLOC)
find_package(HWLOC REQUIRED)
install(FILES ${Legion_SOURCE_DIR}/cmake/FindHWLOC.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake
)
set(REALM_USE_HWLOC ON)
endif()
#------------------------------------------------------------------------------#
# PAPI configuration
#------------------------------------------------------------------------------#
option(Legion_USE_PAPI "Use PAPI for performance measurements" OFF)
if(Legion_USE_PAPI)
# no FindPAPI in cmake by default, so just find the lib and include path
# ourselves
find_library(PAPI_LIBRARIES NAMES libpapi.so libpapi.a papi
HINTS ${PAPI_ROOT}/lib $ENV{PAPI_ROOT}/lib ENV PAPI_LIB_DIR)
find_path(PAPI_INCLUDE_DIRS NAMES papi.h
HINTS ${PAPI_ROOT}/include $ENV{PAPI_ROOT}/include ENV PAPI_INC_DIR)
if(PAPI_LIBRARIES AND PAPI_INCLUDE_DIRS)
set(REALM_USE_PAPI ON)
else()
message(FATAL_ERROR
" Could not find PAPI - set PAPI_{ROOT,INC_DIR,LIB_DIR} if needed -- got:\n"
" PAPI_LIBRARIES: ${PAPI_LIBRARIES}\n"
" PAPI_INCLUDE_DIRS: ${PAPI_INCLUDE_DIRS}")
endif()
endif()
#------------------------------------------------------------------------------#
# zlib configuration
#------------------------------------------------------------------------------#
if(NOT DEFINED Legion_USE_ZLIB)
# neither ON nor OFF at user's request, so use it if we can find it
find_package(ZLIB)
if(ZLIB_FOUND)
set(Legion_USE_ZLIB ON)
else()
set(Legion_USE_ZLIB OFF)
endif()
else()
set(Legion_USE_ZLIB "$CACHE{Legion_USE_ZLIB}")
endif()
set(Legion_USE_ZLIB "${Legion_USE_ZLIB}" CACHE BOOL "Enable support for zlib")
if(Legion_USE_ZLIB)
find_package(ZLIB REQUIRED)
# define variable for legion_defines.h
set(LEGION_USE_ZLIB ON)
endif()
#------------------------------------------------------------------------------#
# Fortran configuration
#------------------------------------------------------------------------------#
option(Legion_USE_Fortran "Enable support for Fortran" OFF)
if(Legion_USE_Fortran)
enable_language(Fortran)
set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -cpp")
endif()
#------------------------------------------------------------------------------#
# Backtrace configuration
#------------------------------------------------------------------------------#
option(Legion_BACKTRACE_USE_UNWIND "Use unwind to capture backtrace" ON)
if(Legion_BACKTRACE_USE_UNWIND)
set(REALM_USE_UNWIND ON)
endif()
option(Legion_BACKTRACE_USE_LIBDW "Use libdw to analyze backtrace" OFF)
if(Legion_BACKTRACE_USE_LIBDW)
find_package(LIBDW)
set(REALM_USE_LIBDW ON)
endif()
#------------------------------------------------------------------------------#
# Miscelaneous other options
#------------------------------------------------------------------------------#
set(Legion_MAX_DIM 3 CACHE STRING "Maximum number of dimensions")
set_property(CACHE Legion_MAX_DIM PROPERTY STRINGS 1 2 3 4 5 6 7 8 9)
mark_as_advanced(Legion_MAX_DIM)
# define variable for legion_defines.h
set(LEGION_MAX_DIM ${Legion_MAX_DIM})
set(REALM_MAX_DIM ${Legion_MAX_DIM})
# legion uses statically-sized arrays for performance in some cases - make
# sure they're big enough for your use case
set(Legion_MAX_FIELDS 512 CACHE STRING
"Maximum number of fields allocated to a single field space -- MUST be a power of two.")
set(Legion_DEFAULT_LOCAL_FIELDS 4 CACHE STRING
"Number of slots in a field space reserved for local fields -- MUST be smaller than or equal to Legion_MAX_FIELDS")
set(Legion_MAX_NUM_NODES 1024 CACHE STRING
"Maximum number of nodes supported by the runtime -- MUST be a power of two.")
set(Legion_MAX_NUM_PROCS 64 CACHE STRING
"Maximum number of processors (per node) supported by the runtime -- MUST be a power of two.")
# check that they're all powers of two
function(is_power_of_two x ret)
set(${ret} FALSE PARENT_SCOPE)
if (${x} LESS_EQUAL 0)
return()
endif()
math(EXPR y "${x} & (${x} - 1)")
if (${y} EQUAL 0)
set(${ret} TRUE PARENT_SCOPE)
endif()
endfunction()
is_power_of_two(${Legion_MAX_FIELDS} is_pow_two)
if (NOT is_pow_two)
message(FATAL_ERROR "Legion_MAX_FIELDS must be a power of two.")
endif()
if (${Legion_DEFAULT_LOCAL_FIELDS} GREATER ${Legion_MAX_FIELDS})
message(FATAL_ERROR "Legion_DEFAULT_LOCAL_FIELDS must be smaller than or equal to Legion_MAX_FIELDS.")
endif()
is_power_of_two(${Legion_MAX_NUM_NODES} is_pow_two)
if (NOT is_pow_two)
message(FATAL_ERROR "Legion_MAX_NUM_NODES must be a power of two.")
endif()
is_power_of_two(${Legion_MAX_NUM_PROCS} is_pow_two)
if (NOT is_pow_two)
message(FATAL_ERROR "Legion_MAX_NUM_PROCS must be a power of two.")
endif()
# define variables for legion_defines.h
set(LEGION_MAX_FIELDS ${Legion_MAX_FIELDS})
set(LEGION_DEFAULT_LOCAL_FIELDS "(${Legion_DEFAULT_LOCAL_FIELDS})")
set(LEGION_MAX_NUM_NODES ${Legion_MAX_NUM_NODES})
set(LEGION_MAX_NUM_PROCS ${Legion_MAX_NUM_PROCS})
option(Legion_WARNINGS_FATAL "Make all runtime warnings fatal" OFF)
set(LEGION_WARNINGS_FATAL ${Legion_WARNINGS_FATAL})
option(Legion_SPY "Enable detailed logging for Legion Spy" OFF)
set(LEGION_SPY ${Legion_SPY})
option(Legion_BOUNDS_CHECKS "Enable bounds checking in Legion accessors" OFF)
set(LEGION_BOUNDS_CHECKS ${Legion_BOUNDS_CHECKS})
option(Legion_PRIVILEGE_CHECKS "Enable privilege checking in Legion accessors" OFF)
set(LEGION_PRIVILEGE_CHECKS ${Legion_PRIVILEGE_CHECKS})
# hiding internal symbols is much more complicated in Windows
if(NOT WIN32)
option(REALM_LIMIT_SYMBOL_VISIBILITY "hide private symbols in realm" ON)
endif()
# Only enable shm on linux and if GASNET1 is not available.
# OSX is not well tested yet, so disable by default for the time being
# GASNET1 does not allow communication before network attach, which is needed
# in order to coordinate a job identifier required to set up named system
# resources
if (UNIX AND NOT APPLE AND NOT REALM_USE_GASNET1)
option(REALM_USE_SHM "Enable shared memory usage" ON)
else()
option(REALM_USE_SHM "Enable shared memory usage" OFF)
endif()
if (UNIX)
# Look for posix_fallocate64 for better error reporting of file mapping
check_function_exists(posix_fallocate64 REALM_HAS_POSIX_FALLOCATE64)
endif ()
#------------------------------------------------------------------------------#
# Hacks for building only Realm
#------------------------------------------------------------------------------#
option(Legion_BUILD_REALM_ONLY "HACK: only build realm" OFF)
option(Legion_BUILD_REALM_TESTS "HACK: build realm-only tests" OFF)
#------------------------------------------------------------------------------#
# Runtime library targets
#------------------------------------------------------------------------------#
add_subdirectory(runtime)
#------------------------------------------------------------------------------#
# Tools
#------------------------------------------------------------------------------#
add_subdirectory(tools)
#------------------------------------------------------------------------------#
# Documentation
#------------------------------------------------------------------------------#
add_subdirectory(doc)
#------------------------------------------------------------------------------#
# configure header
#------------------------------------------------------------------------------#
# Checking for all defines in the CXX Flags
string(REPLACE " " ";" FLAGS_LIST "${CMAKE_CXX_FLAGS}")
FOREACH(FLAG ${FLAGS_LIST})
string (FIND ${FLAG} "-D" START_STR)
if (${START_STR} EQUAL "0")
string(REPLACE "-D" "" NEW_DEFINE ${FLAG})
set (${NEW_DEFINE} ON)
endif()
endforeach()
#------------------------------------------------------------------------------#
# Build-tree package generation
#------------------------------------------------------------------------------#
include(CMakePackageConfigHelpers)
export(EXPORT LegionTargets
NAMESPACE Legion::
FILE ${Legion_BINARY_DIR}/LegionTargets.cmake
)
install(EXPORT LegionTargets
NAMESPACE Legion::
FILE LegionTargets.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake
)
configure_file(
cmake/LegionConfigCommon.cmake.in
${Legion_BINARY_DIR}/LegionConfigCommon.cmake
@ONLY
)
install(FILES ${Legion_BINARY_DIR}/LegionConfigCommon.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake
)
configure_file(
cmake/LegionConfig-build.cmake.in
${Legion_BINARY_DIR}/LegionConfig.cmake
@ONLY
)
write_basic_package_version_file(
${Legion_BINARY_DIR}/LegionConfig-version.cmake
VERSION ${Legion_VERSION}
COMPATIBILITY ExactVersion)
install(FILES ${Legion_BINARY_DIR}/LegionConfig-version.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake
)
install(FILES cmake/LegionConfig-install.cmake
DESTINATION ${CMAKE_INSTALL_DATADIR}/Legion/cmake
RENAME LegionConfig.cmake
)
#------------------------------------------------------------------------------#
# Install into the CMake pacakge registry if explicitly selected to do so
#------------------------------------------------------------------------------#
set(CMAKE_EXPORT_NO_PACKAGE_REGISTRY ON CACHE INTERNAL "Disable the export(PACKAGE) command.")
option(Legion_USE_PACKAGE_REGISTRY "Register the build tree with the CMake package registry" OFF)
mark_as_advanced(Legion_USE_PACKAGE_REGISTRY)
if(Legion_USE_PACKAGE_REGISTRY)
set(CMAKE_EXPORT_NO_PACKAGE_REGISTRY OFF)
endif()
export(PACKAGE Legion)
#------------------------------------------------------------------------------#
# Examples and Applications
#------------------------------------------------------------------------------#
option(Legion_BUILD_ALL "Build all Legion bindings, examples, tutorials and tests" OFF)
option(Legion_BUILD_APPS "Build Legion sample applications" OFF)
option(Legion_BUILD_BINDINGS "Build Legion language bindings" OFF)
option(Legion_BUILD_EXAMPLES "Build Legion examples" OFF)
option(Legion_BUILD_TUTORIAL "Build Legion tutorial" OFF)
option(Legion_BUILD_TESTS "Build Legion tests" OFF)
option(Legion_BUILD_JUPYTER "Build Legion jupyter notebook support" OFF)
option(Legion_ENABLE_TESTING "Build and copy testing stuff" OFF)
option(Legion_BUILD_RUST_PROFILER "Build Rust version of Legion profiler" OFF)
if(Legion_ENABLE_TESTING)
enable_testing()
# if Legion_TEST_LAUNCHER is set, split the string into a list
separate_arguments(Legion_TEST_LAUNCHER)
separate_arguments(Legion_TEST_ARGS)
# if we are using kokkos and cuda, we must hardcode the use of 1 gpu right now
if(Legion_USE_Kokkos AND Legion_USE_CUDA)
list(APPEND Legion_TEST_ARGS -ll:gpu 1)
endif()
# similar restrictions for openmp
if(Legion_USE_Kokkos AND Legion_USE_OpenMP)
list(APPEND Legion_TEST_ARGS -ll:ocpu 1 -ll:onuma 0)
endif()
endif()
if(Legion_BUILD_ALL OR Legion_BUILD_APPS OR Legion_BUILD_BINDINGS OR Legion_BUILD_EXAMPLES OR Legion_BUILD_TUTORIAL OR Legion_BUILD_TESTS)
# Make a namespaced alias so in-build examples can use it the same way as if
# it were imported
add_library(Legion::Legion ALIAS Legion)
add_library(Legion::Realm ALIAS Realm)
if(Legion_HIP_TARGET STREQUAL "ROCM")
set(HIP_HIPCC_FLAGS "${HIP_HIPCC_FLAGS} ${HIPCC_FLAGS} ${HIP_GENCODE}")
endif()
if(Legion_BUILD_ALL OR Legion_BUILD_APPS)
add_subdirectory(apps)
endif()
if(Legion_BUILD_ALL OR Legion_BUILD_BINDINGS)
add_subdirectory(bindings)
endif()
if(Legion_BUILD_ALL OR Legion_BUILD_EXAMPLES)
add_subdirectory(examples)
endif()
if(Legion_BUILD_ALL OR Legion_BUILD_TUTORIAL)
add_subdirectory(tutorial)
endif()
if(Legion_BUILD_ALL OR Legion_BUILD_TESTS)
add_subdirectory(test)
endif()
if(Legion_BUILD_ALL OR Legion_BUILD_JUPYTER)
add_subdirectory(jupyter_notebook)
endif()
elseif(Legion_BUILD_REALM_TESTS)
# temporary hackery to just enable the realm tests
add_library(Legion::Realm ALIAS Realm)
add_subdirectory(test/realm)
endif()
if(Legion_BUILD_REALM_UNIT_TESTS)
if (BUILD_SHARED_LIBS)
add_library(Legion::RealmTests ALIAS RealmStatic)
else()
add_library(Legion::RealmTests ALIAS Realm)
endif()
add_subdirectory(test/realm/unit_tests)
endif()
#------------------------------------------------------------------------------#
# Complex support
#------------------------------------------------------------------------------#
if(Legion_BUILD_ALL OR Legion_BUILD_BINDINGS)
option(Legion_REDOP_COMPLEX "Use reduction operators for complex types" ON)
else()
option(Legion_REDOP_COMPLEX "Use reduction operators for complex types" OFF)
endif()
if((Legion_BUILD_ALL OR Legion_BUILD_BINDINGS) AND NOT Legion_REDOP_COMPLEX)