Re: [petsc-dev] Error running on Titan with GPUs & GNU

[Smith, Barry F. via petsc-dev]

> On Oct 29, 2018, at 8:09 PM, Mark Adams <mfad...@lbl.gov> wrote:
> 
> And a debug build seems to work:

    Well ok. 

    Are there newer versions of the Gnu compiler for this system? Are there any 
other compilers on the system that would likely be less buggy? IBM compilers? 
If this simple code generates a gross error with optimization who's to say how 
many more subtle bugs may be induced in the library by the buggy optimizer 
(there may be none but IMHO probability says there will be others). 

    Is there any chance that valgrind runs on this machine; you could run the 
optimized version through it and see what it says.

   Barry

> 
> 21:04 1 master= /lustre/atlas/proj-shared/geo127/petsc$ make 
> PETSC_DIR=/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda 
> PETSC_ARCH="" test
> Running test examples to verify correct installation
> Using 
> PETSC_DIR=/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda and 
> PETSC_ARCH=
> *******************Error detected during compile or link!*******************
> See http://www.mcs.anl.gov/petsc/documentation/faq.html
> /lustre/atlas/proj-shared/geo127/petsc/src/snes/examples/tutorials ex19
> *********************************************************************************
> cc -o ex19.o -c -g   
> -I/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/include    
> `pwd`/ex19.c
> cc -g  -o ex19 ex19.o  
> -L/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib 
> -Wl,-rpath,/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib 
> -L/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib -lpetsc 
> -lHYPRE -lflapack -lfblas -lparmetis -lmetis -ldl
> /lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib/libpetsc.a(dlimpl.o):
>  In function `PetscDLOpen':
> /lustre/atlas1/geo127/proj-shared/petsc/src/sys/dll/dlimpl.c:108: warning: 
> Using 'dlopen' in statically linked applications requires at runtime the 
> shared libraries from the glibc version used for linking
> /lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib/libpetsc.a(send.o):
>  In function `PetscOpenSocket':
> /lustre/atlas1/geo127/proj-shared/petsc/src/sys/classes/viewer/impls/socket/send.c:108:
>  warning: Using 'gethostbyname' in statically linked applications requires at 
> runtime the shared libraries from the glibc version used for linking
> true ex19
> rm ex19.o
> Possible error running C/C++ src/snes/examples/tutorials/ex19 with 1 MPI 
> process
> See http://www.mcs.anl.gov/petsc/documentation/faq.html
> lid velocity = 0.0016, prandtl # = 1., grashof # = 1.
> Number of SNES iterations = 2
> Application 19081049 resources: utime ~1s, stime ~1s, Rss ~17112, inblocks 
> ~36504, outblocks ~111043
> Possible error running C/C++ src/snes/examples/tutorials/ex19 with 2 MPI 
> processes
> See http://www.mcs.anl.gov/petsc/documentation/faq.html
> lid velocity = 0.0016, prandtl # = 1., grashof # = 1.
> Number of SNES iterations = 2
> Application 19081050 resources: utime ~1s, stime ~1s, Rss ~19816, inblocks 
> ~36527, outblocks ~111043
> 5a6
> > Application 19081051 resources: utime ~1s, stime ~0s, Rss ~13864, inblocks 
> > ~36527, outblocks ~111043
> /lustre/atlas/proj-shared/geo127/petsc/src/snes/examples/tutorials
> Possible problem with ex19_hypre, diffs above
> =========================================
> *******************Error detected during compile or link!*******************
> See http://www.mcs.anl.gov/petsc/documentation/faq.html
> /lustre/atlas/proj-shared/geo127/petsc/src/snes/examples/tutorials ex5f
> *********************************************************
> ftn -c -g    
> -I/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/include    
> -o ex5f.o ex5f.F90
> ftn -g   -o ex5f ex5f.o  
> -L/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib 
> -Wl,-rpath,/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib 
> -L/lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib -lpetsc 
> -lHYPRE -lflapack -lfblas -lparmetis -lmetis -ldl
> /lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib/libpetsc.a(dlimpl.o):
>  In function `PetscDLOpen':
> /lustre/atlas1/geo127/proj-shared/petsc/src/sys/dll/dlimpl.c:108: warning: 
> Using 'dlopen' in statically linked applications requires at runtime the 
> shared libraries from the glibc version used for linking
> /lustre/atlas/proj-shared/geo127/petsc_titan_dbg64idx_gnu_cuda/lib/libpetsc.a(send.o):
>  In function `PetscOpenSocket':
> /lustre/atlas1/geo127/proj-shared/petsc/src/sys/classes/viewer/impls/socket/send.c:108:
>  warning: Using 'gethostbyname' in statically linked applications requires at 
> runtime the shared libraries from the glibc version used for linking
> rm ex5f.o
> Possible error running Fortran example src/snes/examples/tutorials/ex5f with 
> 1 MPI process
> See http://www.mcs.anl.gov/petsc/documentation/faq.html
> Number of SNES iterations =     4
> Application 19081055 resources: utime ~1s, stime ~0s, Rss ~12760, inblocks 
> ~36800, outblocks ~111983
> Completed test examples
> 21:06 master= /lustre/atlas/proj-shared/geo127/petsc$