[petsc-dev] Seeking OLCF users complaining about poor build times

[Satish Balay]

Attaching logs.

Note: 'uptime' is run a bit after the builds completed..

Satish

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mira.alcf build: MAKE_NP = 32
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[balay at miralac1 petsc.maint.35]$ time ./reconfigure-arch-time-test.py
<snip>
real    25m57.240s
user    17m33.944s
sys     6m41.065s

[balay at miralac1 petsc.maint.35]$ time    make PETSC_DIR=/gpfs/mira-home/balay/petsc.maint.35 PETSC_ARCH=arch-time-test all
<snip>
real    1m39.067s
user    22m56.248s
sys     7m42.658s

[balay at miralac1 petsc.maint.35]$ uptime
 21:50:08 up 10 days,  2:14, 87 users,  load average: 3.86, 5.02, 5.03

--------------
Laptop build: MAKE_NP = 4
--------------
$ time ./configure --download-hypre --download-metis --download-parmetis --download-superlu_dist --download-fblaslapack --with-debugging=0 --with-c2html=0 PETSC_ARCH=arch-test COPTFLAGS="-O3 -fast" FOPTFLAGS="-O3 -fast" CXXOPTFLAGS="-O3 -fast"
<snip>
real    3m56.755s
user    2m47.458s
sys     0m57.206s

$ time    make PETSC_DIR=/home/balay/petsc PETSC_ARCH=arch-test all
<snip>
real    1m13.519s
user    3m40.708s
sys     0m47.002s

$ uptime
 15:50:32 up 3 days,  5:20, 11 users,  load average: 0.05, 0.30, 0.49

--------------

[balay at miralac1 petsc.maint.35]$ cat reconfigure-arch-time-test.py 
#!/usr/bin/python
if __name__ == '__main__':
  import sys
  import os
  sys.path.insert(0, os.path.abspath('config'))
  import configure
  configure_options = [
    '--download-hypre=1',
    '--download-metis=1',
    '--download-parmetis=1',
    '--download-superlu_dist=1',
    #'--with-blas-lapack-lib=-L/soft/libraries/alcf/current/xl/LAPACK/lib -llapack -L/soft/libraries/alcf/current/xl/BLAS/lib -lblas',
    '--download-fblaslapack=1',
    '--with-c2html=0',
    '--with-cc=mpixlc_r',
    '--with-cxx=mpixlcxx_r',
    '--with-debugging=0',
    '--with-fc=mpixlf77_r -qnosave',
    '--with-shared-libraries=0',
    '--with-x=0',
    '-COPTFLAGS= -O3 -qhot=level=0 -qsimd=auto -qmaxmem=-1 -qstrict -qstrict_induction',
    '-CXXOPTFLAGS= -O3 -qhot=level=0 -qsimd=auto -qmaxmem=-1 -qstrict -qstrict_induction',
    '-FOPTFLAGS= -O3 -qhot=level=0 -qsimd=auto -qmaxmem=-1 -qstrict -qstrict_induction',
    'PETSC_ARCH=arch-time-test',
  ]
  configure.petsc_configure(configure_options)


> > > > On Feb 26, 2015, at 8:13 AM, Nathan Collier <nathaniel.collier at gmail.com>
> > > wrote:
> > > >
> > > > Ok, so I built PETSc with metis, parmetis, superlu_dist, and hyper on
> > > Titan. The configure time is the second configure--when you run the
> > > reconfigure script that the batch submission generates for you.
> > > >
> > > > configure:  38m15.488s
> > > > make: 15m37.610s
> > > >
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