[petsc-users] AMPERE80

Fri Apr 16 21:51:10 CDT 2021

  valgrind first and I think NVIDIA has a "valgrind" for GPUs; then start in debugger. 

  You could also back off on the aggressive optimization and see if that changes the behavior.

> On Apr 16, 2021, at 9:24 AM, Matthew Knepley <knepley at gmail.com> wrote:
> 
> Can you get a stack trace?
> 
>   Matt
> 
> On Fri, Apr 16, 2021 at 10:19 AM Mark Adams <mfadams at lbl.gov <mailto:mfadams at lbl.gov>> wrote:
> That seems to have changed it. No stack trace.
> 
> srun  -G 1 -c 2 -n 1  ./ex2 -petscspace_degree 3 -ex2_test_type spitzer -dm_landau_Ez 0 -dm_landau_ion_masses .01 -dm_landau_ion_charges 1 -dm_landau_thermal_temps 2,1 -dm_landau_n 1,1 -ts_type beuler -ts_exact_final_time stepover -ts_max_steps 2 -ts_dt 1 -ts_monitor -snes_monitor -snes_max_it 25 -snes_rtol 1.e-14 -snes_stol 1.e-14 -pc_type lu -ksp_type preonly -dm_landau_type p4est -dm_landau_amr_levels_max 13 -dm_landau_amr_post_refine 1 -dm_preallocate_only -ex2_plot_dt .0001 -dm_landau_device_type cuda -dm_mat_type aijcusparse -dm_vec_type cuda -display :0.0
> [0]PETSC ERROR: ------------------------------------------------------------------------
> [0]PETSC ERROR: Caught signal number 4 Illegal instruction: Likely due to memory corruption
> [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> [0]PETSC ERROR: or see https://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind <https://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> [0]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors
> [0]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and run 
> [0]PETSC ERROR: to get more information on the crash.
> [0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> [0]PETSC ERROR: Signal received
> [0]PETSC ERROR: See https://www.mcs.anl.gov/petsc/documentation/faq.html <https://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> [0]PETSC ERROR: Petsc Development GIT revision: v3.15.0-205-g2283897782  GIT Date: 2021-04-15 09:38:17 -0400
> [0]PETSC ERROR: /global/u2/m/madams/petsc/src/ts/utils/dmplexlandau/tutorials/./ex2 on a arch-cori-gpu80-opt-kokkos-gcc named cgpu19 by madams Fri Apr 16 07:16:28 2021
> [0]PETSC ERROR: Configure options --with-mpi-dir=/usr/common/software/sles15_cgpu/openmpi/4.0.3/gcc --with-cuda-dir=/usr/common/software/sles15_cgpu/cuda/11.1.1 CFLAGS="   -g -DPETSC_HAVE_CUDA_ATOMIC" CXXFLAGS=" -g -DPETSC_HAVE_CUDA_ATOMIC" FFLAGS="   -g " COPTFLAGS="   -O" CXXOPTFLAGS=" -O" FOPTFLAGS="   -O" --CUDAFLAGS="-arch=sm_80 -Xcompiler -rdynamic -lineinfo -DPETSC_HAVE_CUDA_ATOMIC -g" --CUDAOPTFLAGS=-O3 --download-fblaslapack=1 --with-debugging=0 --download-kokkos --download-kokkos-kernels --with-kokkos-cuda-arch=AMPERE80 --with-kokkos-kernels-tpl=0 --with-make-np=8 --with-ctable=0 --with-mpiexec="srun -G 1 -c 2" --with-batch=0 PETSC_ARCH=arch-cori-gpu80-opt-kokkos-gcc --with-cuda=1 --download-p4est=1 --with-zlib=1
> [0]PETSC ERROR: #1 User provided function() at unknown file:0
> 
> On Fri, Apr 16, 2021 at 10:02 AM Matthew Knepley <knepley at gmail.com <mailto:knepley at gmail.com>> wrote:
> On Fri, Apr 16, 2021 at 9:58 AM Mark Adams <mfadams at lbl.gov <mailto:mfadams at lbl.gov>> wrote:
> I am running on a new AMPERE80 node at NERSc and get this error message. I put this in totalview but did not get anything useful.
> 
> Any ideas?
> 
> Maybe getenv() is failing?
> 
> You can shutoff this behavior using
> 
>   -display :0.0
> 
>    Matt
>  
> cgpu19:228520:0:228520] Caught signal 4 (Illegal instruction: illegal operand)
> ==== backtrace (tid: 228520) ====
>  0  /usr/common/software/sles15_cgpu/ucx/1.8.1/lib/libucs.so.0(ucs_handle_error+0x2e4) [0x2aab2e9a2ac4]
>  1  /usr/common/software/sles15_cgpu/ucx/1.8.1/lib/libucs.so.0(+0x21cc4) [0x2aab2e9a2cc4]
>  2  /usr/common/software/sles15_cgpu/ucx/1.8.1/lib/libucs.so.0(+0x21d33) [0x2aab2e9a2d33]
>  3  /global/homes/m/madams/petsc/arch-cori-gpu80-opt-kokkos-gcc/lib/libpetsc.so.3.015(PetscSetDisplay+0x152) [0x2aaaaaf19ab1]
>  4  /global/homes/m/madams/petsc/arch-cori-gpu80-opt-kokkos-gcc/lib/libpetsc.so.3.015(+0x21c7bc) [0x2aaaaaeef7bc]
>  5  /global/homes/m/madams/petsc/arch-cori-gpu80-opt-kokkos-gcc/lib/libpetsc.so.3.015(PetscInitialize+0x449) [0x2aaaaaef5278]
>  6  /global/u2/m/madams/petsc/src/ts/utils/dmplexlandau/tutorials/./ex2() [0x405b62]
>  7  /lib64/libc.so.6(__libc_start_main+0xea) [0x2aab1344df8a]
>  8  /global/u2/m/madams/petsc/src/ts/utils/dmplexlandau/tutorials/./ex2() [0x4026aa]
> =================================
> srun: error: cgpu19: task 0: Illegal instruction
> srun: Terminating job step 1821681.10
> 
> 
> -- 
> What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
> -- Norbert Wiener
> 
> https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
> 
> 
> -- 
> What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
> -- Norbert Wiener
> 
> https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>

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