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Replace the lattice-Boltzmann and electrokinetics features by a new implementation based on waLBerla, using PyStencils and LbmPy. Co-authored-by: Rudolf Weeber <[email protected]> Co-authored-by: Jean-Noël Grad <[email protected]> Co-authored-by: Alexander Reinauer <[email protected]> Co-authored-by: Ingo Tischler <[email protected]> Co-authored-by: Sebastian Bindgen <[email protected]> Co-authored-by: Christoph Lohrmann <[email protected]> Co-authored-by: Patrick Kreissl <[email protected]> Co-authored-by: RiccardoFrenner <[email protected]> Co-authored-by: stekajack <[email protected]> Co-authored-by: Kai Szuttor <[email protected]> Co-authored-by: capomav <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| # | ||
| # Copyright (C) 2022-2023 The ESPResSo project | ||
| # | ||
| # This file is part of ESPResSo. | ||
| # | ||
| # ESPResSo is free software: you can redistribute it and/or modify | ||
| # it under the terms of the GNU General Public License as published by | ||
| # the Free Software Foundation, either version 3 of the License, or | ||
| # (at your option) any later version. | ||
| # | ||
| # ESPResSo is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| # GNU General Public License for more details. | ||
| # | ||
| # You should have received a copy of the GNU General Public License | ||
| # along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| # | ||
|
|
||
| function(espresso_enable_avx2_support callback) | ||
| set(COMPILER_AVX2_FLAG "") | ||
| foreach(FLAG_NAME "-mavx2" "/arch:AVX2") | ||
| string(REGEX REPLACE "[^0-9A-Za-z_]" "_" FLAG_VARIABLE "${FLAG_NAME}") | ||
| check_cxx_compiler_flag("${flag_name}" | ||
| COMPILER_HAS_${FLAG_VARIABLE}_FLAG_RESULT) | ||
| if(COMPILER_HAS_${FLAG_VARIABLE}_FLAG_RESULT) | ||
| set(COMPILER_AVX2_FLAG "${FLAG_NAME}") | ||
| cmake_language(CALL ${callback} "${COMPILER_AVX2_FLAG}") | ||
| break() | ||
| endif() | ||
| endforeach() | ||
| if(COMPILER_AVX2_FLAG STREQUAL "") | ||
| message( | ||
| FATAL_ERROR | ||
| "${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION} doesn't support AVX2-specific compiler flags." | ||
| ) | ||
| endif() | ||
| if(NOT COMPILER_AVX2_FLAG STREQUAL "/arch:AVX2") | ||
| execute_process( | ||
| COMMAND ${CMAKE_CXX_COMPILER} -march=native -E -v - INPUT_FILE /dev/null | ||
| OUTPUT_VARIABLE MARCH_NATIVE_OUTPUT_STRING | ||
| ERROR_VARIABLE MARCH_NATIVE_OUTPUT_STRING) | ||
| if(NOT "${MARCH_NATIVE_OUTPUT_STRING}" MATCHES "[ \n](\\+avx2|-mavx2|-D__AVX2__)[ \n]") | ||
| message( | ||
| FATAL_ERROR | ||
| "AVX2 not supported on this CPU architecture according to ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}. While ESPResSo will still compile, you will trigger SIGILL when calling AVX functions." | ||
| ) | ||
| endif() | ||
| endif() | ||
| set(CMAKE_REQUIRED_FLAGS_BACKUP "${CMAKE_REQUIRED_FLAGS}") | ||
| set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${COMPILER_AVX2_FLAG}") | ||
| check_cxx_source_compiles( | ||
| "#include <immintrin.h> | ||
| __m256i xi_i = _mm256_set_epi32(1, 2, 3, 4, 5, 6, 7, 8); | ||
| __m256 xi_s = _mm256_set_ps(0.f, 1.f, 2.f, 3.f, 4.f, 5.f, 6.f, 7.f); | ||
| __m256d xi_d = _mm256_set_pd(0.0, 1.0, 2.0, 3.0); | ||
| int main() {} | ||
| " COMPILER_HAS_AVX2_SUPPORT) | ||
| set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS_BACKUP}") | ||
| if(NOT COMPILER_HAS_AVX2_SUPPORT) | ||
| message( | ||
| FATAL_ERROR | ||
| "Cannot execute a simple AVX2 program compiled by ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}." | ||
| ) | ||
| endif() | ||
| endfunction() | ||
|
|
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