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[[5th easybuild hackathon]] - notes day 2 - notes day 3

presentation: Introduction to EasyBuild

questions

  • using system-provided tools (compiler, MPI, …)
  • hard requirement for e.g. IBM XL compiler, also for Fujitsu, Hitachi, …
  • can be done via a SystemTools easyblock? (not there yet today)
  • implementing compiler support in framework is still required, see easybuild/toolchains/compiler
  • 3 (actually 4?) different types of users:
  • people who simple use 'eb' with existing easyconfig files
  • people who write their own easyconfig files for new software
  • people who implement easy block
  • (people who develop framework)

hackathon: getting started

  • need to fix bootstrap script to work with Tcl environment modules and Lmod !!!

  • cfr. easybuilders/easybuild-framework#765

  • update: PR available, see easybuilders/easybuild-framework#869

  • Pavel: 'fooling' EasyBuild by providing modules for system-provided tools

  • e.g. build Cube with all reps provided by OS

  • get toolchain module exactly right (deps, conflict line, …), $EBROOTX, …

  • Peter: SSL dep for Python => switch to using OpenSSL sep

  • build Score-P + whole software stack using --robot

  • Markus: making EasyBuild generate hierarchical modules

  • basically just playing around with module name space

  • xx/GCC/4.7, prepends $MODULEPATH with yy/4.7

  • yy/4.7/OpenMPI/1.6.5, prepends $MODULEPATH with zz/1.6.5

  • zz/1.6.5/gzip/1.4, exposed to user as gzip/1.4 :-)

  • prepend $MODULEPATH via modextrapaths, define $MODPREFIX for easy access in module naming scheme?

  • get this documented?

  • support for hierarchical modules in modulecmd.tcl can be provided via self-defined Tcl functions; all modules mustsource these

  • update: see easybuilders/easybuild-framework#862

  • Markus: conflict between toolchain modules (also MPI, maybe compiler/BLAS/LAPACK libs?)

  • can be done via setting env var and writing own conflict detection function (done now already in Tcl)

  • see easybuilders/easybuild-framework#860

  • Markus: global way of setting opt arch toolchain option to False?

  • a general config option should be available to tweak toolchain options

  • Alexandre: building stat + deps (libddwarf)

  • Jens: implement --track-user (in log, module file, build stats, …)

  • see easybuilders/easybuild-framework#856

  • download of MPFR is broken, sources got moved?