[petsc-users] CUDA running out of memory in PtAP

Wed Jul 7 08:25:15 CDT 2021

Thanks, but that did not work.

It looks like this is just in MPIAIJ, but I am using SeqAIJ. ex2 (below)
uses PETSC_COMM_SELF everywhere.

+ srun -G 1 -n 16 -c 1 --cpu-bind=cores --ntasks-per-core=2
/global/homes/m/madams/mps-wrapper.sh ../ex2 -dm_landau_device_type cuda
-dm_mat_type aijcusparse -dm_vec_type cuda -log_view -pc_type gamg
-ksp_type gmres -pc_gamg_reuse_interpolation *-matmatmult_backend_cpu
-matptap_backend_cpu *-dm_landau_ion_masses .0005,1,1,1,1,1,1,1,1
-dm_landau_ion_charges 1,2,3,4,5,6,7,8,9 -dm_landau_thermal_temps
1,1,1,1,1,1,1,1,1,1 -dm_landau_n
1.000003,.5,1e-7,1e-7,1e-7,1e-7,1e-7,1e-7,1e-7,1e-7
0 starting nvidia-cuda-mps-control on cgpu17
mps ready: 2021-07-07T06:17:36-07:00
masses:        e= 9.109e-31; ions in proton mass units:    5.000e-04
 1.000e+00 ...
charges:       e=-1.602e-19; charges in elementary units:  1.000e+00
 2.000e+00
thermal T (K): e= 1.160e+07 i= 1.160e+07 imp= 1.160e+07. v_0= 1.326e+07
n_0= 1.000e+20 t_0= 5.787e-06 domain= 5.000e+00
CalculateE j0=0. Ec = 0.050991
0 TS dt 1. time 0.
  0) species-0: charge density= -1.6054532569865e+01 z-momentum=
-1.9059929215360e-19 energy=  2.4178543516210e+04
  0) species-1: charge density=  8.0258396545108e+00 z-momentum=
 7.0660527288120e-20 energy=  1.2082380663859e+04
  0) species-2: charge density=  6.3912608577597e-05 z-momentum=
-1.1513901010709e-24 energy=  3.5799558195524e-01
  0) species-3: charge density=  9.5868912866395e-05 z-momentum=
-1.1513901010709e-24 energy=  3.5799558195524e-01
  0) species-4: charge density=  1.2782521715519e-04 z-momentum=
-1.1513901010709e-24 energy=  3.5799558195524e-01
[7]PETSC ERROR: --------------------- Error Message
--------------------------------------------------------------
[7]PETSC ERROR: GPU resources unavailable
[7]PETSC ERROR: CUDA error 2 (cudaErrorMemoryAllocation) : out of memory.
Reports alloc failed; this indicates the GPU has run out resources
[7]PETSC ERROR: See https://www.mcs.anl.gov/petsc/documentation/faq.html
for trouble shooting.
[7]PETSC ERROR: Petsc Development GIT revision: v3.15.1-569-g270a066c1e
 GIT Date: 2021-07-06 03:22:54 -0700
[7]PETSC ERROR: ../ex2 on a arch-cori-gpu-opt-gcc named cgpu17 by madams
Wed Jul  7 06:17:38 2021
[7]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 -DLANDAU_DIM=2 -DLANDAU_MAX_SPECIES=10 -DLANDAU_MAX_Q=4" --CXXFLAGS=" -g
-DLANDAU_DIM=2 -DLANDAU_MAX_SPECIES=10 -DLANDAU_MAX_Q=4" --CUDAFLAGS="-g
-Xcompiler -rdynamic -DLANDAU_DIM=2 -DLANDAU_MAX_SPECIES=10
-DLANDAU_MAX_Q=4" --FFLAGS="   -g " --COPTFLAGS="   -O3" --CXXOPTFLAGS="
-O3" --FOPTFLAGS="   -O3" --download-fblaslapack=1 --with-debugging=0
--with-mpiexec="srun -G 1" --with-cuda-gencodearch=70 --with-batch=0
--with-cuda=1 --download-p4est=1 --download-hypre=1 --with-zlib=1
PETSC_ARCH=arch-cori-gpu-opt-gcc

*[7]PETSC ERROR: #1 MatProductSymbolic_SeqAIJCUSPARSE_SeqAIJCUSPARSE() at
/global/u2/m/madams/petsc/src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu:2622
<http://aijcusparse.cu:2622>*[7]PETSC ERROR: #2
MatProductSymbolic_ABC_Basic() at
/global/u2/m/madams/petsc/src/mat/interface/matproduct.c:1146
[7]PETSC ERROR: #3 MatProductSymbolic() at
/global/u2/m/madams/petsc/src/mat/interface/matproduct.c:799
[7]PETSC ERROR: #4 MatPtAP() at
/global/u2/m/madams/petsc/src/mat/interface/matrix.c:9626
[7]PETSC ERROR: #5 PCGAMGCreateLevel_GAMG() at
/global/u2/m/madams/petsc/src/ksp/pc/impls/gamg/gamg.c:87
[7]PETSC ERROR: #6 PCSetUp_GAMG() at
/global/u2/m/madams/petsc/src/ksp/pc/impls/gamg/gamg.c:663
[7]PETSC ERROR: #7 PCSetUp() at
/global/u2/m/madams/petsc/src/ksp/pc/interface/precon.c:1014
[7]PETSC ERROR: #8 KSPSetUp() at
/global/u2/m/madams/petsc/src/ksp/ksp/interface/itfunc.c:406
[7]PETSC ERROR: #9 KSPSolve_Private() at
/global/u2/m/madams/petsc/src/ksp/ksp/interface/itfunc.c:850
[7]PETSC ERROR: #10 KSPSolve() at
/global/u2/m/madams/petsc/src/ksp/ksp/interface/itfunc.c:1084
[7]PETSC ERROR: #11 SNESSolve_NEWTONLS() at
/global/u2/m/madams/petsc/src/snes/impls/ls/ls.c:225
[7]PETSC ERROR: #12 SNESSolve() at
/global/u2/m/madams/petsc/src/snes/interface/snes.c:4769
[7]PETSC ERROR: #13 TSTheta_SNESSolve() at
/global/u2/m/madams/petsc/src/ts/impls/implicit/theta/theta.c:185
[7]PETSC ERROR: #14 TSStep_Theta() at
/global/u2/m/madams/petsc/src/ts/impls/implicit/theta/theta.c:223
[7]PETSC ERROR: #15 TSStep() at
/global/u2/m/madams/petsc/src/ts/interface/ts.c:3571
[7]PETSC ERROR: #16 TSSolve() at
/global/u2/m/madams/petsc/src/ts/interface/ts.c:3968
[7]PETSC ERROR: #17 main() at ex2.c:699
[7]PETSC ERROR: PETSc Option Table entries:
[7]PETSC ERROR: -dm_landau_amr_levels_max 0
[7]PETSC ERROR: -dm_landau_amr_post_refine 5
[7]PETSC ERROR: -dm_landau_device_type cuda
[7]PETSC ERROR: -dm_landau_domain_radius 5
[7]PETSC ERROR: -dm_landau_Ez 0
[7]PETSC ERROR: -dm_landau_ion_charges 1,2,3,4,5,6,7,8,9
[7]PETSC ERROR: -dm_landau_ion_masses .0005,1,1,1,1,1,1,1,1
[7]PETSC ERROR: -dm_landau_n
1.000003,.5,1e-7,1e-7,1e-7,1e-7,1e-7,1e-7,1e-7,1e-7
[7]PETSC ERROR: -dm_landau_thermal_temps 1,1,1,1,1,1,1,1,1,1
[7]PETSC ERROR: -dm_landau_type p4est
[7]PETSC ERROR: -dm_mat_type aijcusparse
[7]PETSC ERROR: -dm_preallocate_only
[7]PETSC ERROR: -dm_vec_type cuda
[7]PETSC ERROR: -ex2_connor_e_field_units
[7]PETSC ERROR: -ex2_impurity_index 1
[7]PETSC ERROR: -ex2_plot_dt 200
[7]PETSC ERROR: -ex2_test_type none
[7]PETSC ERROR: -ksp_type gmres
[7]PETSC ERROR: -log_view

*[7]PETSC ERROR: -matmatmult_backend_cpu[7]PETSC ERROR:
-matptap_backend_cpu*
[7]PETSC ERROR: -pc_gamg_reuse_interpolation
[7]PETSC ERROR: -pc_type gamg
[7]PETSC ERROR: -petscspace_degree 1
[7]PETSC ERROR: -snes_max_it 15
[7]PETSC ERROR: -snes_rtol 1.e-6
[7]PETSC ERROR: -snes_stol 1.e-6
[7]PETSC ERROR: -ts_adapt_scale_solve_failed 0.5
[7]PETSC ERROR: -ts_adapt_time_step_increase_delay 5
[7]PETSC ERROR: -ts_dt 1
[7]PETSC ERROR: -ts_exact_final_time stepover
[7]PETSC ERROR: -ts_max_snes_failures -1
[7]PETSC ERROR: -ts_max_steps 10
[7]PETSC ERROR: -ts_max_time 300
[7]PETSC ERROR: -ts_rtol 1e-2
[7]PETSC ERROR: -ts_type beuler

On Wed, Jul 7, 2021 at 4:07 AM Stefano Zampini <stefano.zampini at gmail.com>
wrote:

> This will select the CPU path
>
> -matmatmult_backend_cpu -matptap_backend_cpu
>
> On Jul 7, 2021, at 2:43 AM, Mark Adams <mfadams at lbl.gov> wrote:
>
> Can I turn off using cuSprarse for RAP?
>
> On Tue, Jul 6, 2021 at 6:25 PM Barry Smith <bsmith at petsc.dev> wrote:
>
>>
>>   Stefano has mentioned this before. He reported cuSparse matrix-matrix
>> vector products use a very amount of memory.
>>
>> On Jul 6, 2021, at 4:33 PM, Mark Adams <mfadams at lbl.gov> wrote:
>>
>> I am running out of memory in GAMG. It looks like this is from the new
>> cuSparse RAP.
>> I was able to run Hypre with twice as much work on the GPU as this run.
>> Are there parameters to tweek for this perhaps or can I disable it?
>>
>> Thanks,
>> Mark
>>
>>    0 SNES Function norm 5.442539952302e-04
>> [2]PETSC ERROR: --------------------- Error Message
>> --------------------------------------------------------------
>> [2]PETSC ERROR: GPU resources unavailable
>> [2]PETSC ERROR: CUDA error 2 (cudaErrorMemoryAllocation) : out of memory.
>> Reports alloc failed; this indicates the GPU has run out resources
>> [2]PETSC ERROR: See https://www.mcs.anl.gov/petsc/documentation/faq.html
>> for trouble shooting.
>> [2]PETSC ERROR: Petsc Development GIT revision: v3.15.1-569-g270a066c1e
>>  GIT Date: 2021-07-06 03:22:54 -0700
>> [2]PETSC ERROR: ../ex2 on a arch-cori-gpu-opt-gcc named cgpu11 by madams
>> Tue Jul  6 13:37:43 2021
>> [2]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 -DLANDAU_DIM=2 -DLANDAU_MAX_SPECI
>> ES=10 -DLANDAU_MAX_Q=4" --CXXFLAGS=" -g -DLANDAU_DIM=2
>> -DLANDAU_MAX_SPECIES=10 -DLANDAU_MAX_Q=4" --CUDAFLAGS="-g -Xcompiler
>> -rdynamic -DLANDAU_DIM=2 -DLANDAU_MAX_SPECIES=10 -DLANDAU_MAX_Q=4"
>> --FFLAGS="   -g " -
>> -COPTFLAGS="   -O3" --CXXOPTFLAGS=" -O3" --FOPTFLAGS="   -O3"
>> --download-fblaslapack=1 --with-debugging=0 --with-mpiexec="srun -G 1"
>> --with-cuda-gencodearch=70 --with-batch=0 --with-cuda=1 --download-p4est=1
>> --
>> download-hypre=1 --with-zlib=1 PETSC_ARCH=arch-cori-gpu-opt-gcc
>> [2]PETSC ERROR: #1 MatProductSymbolic_SeqAIJCUSPARSE_SeqAIJCUSPARSE() at
>> /global/u2/m/madams/petsc/src/mat/impls/aij/seq/seqcusparse/
>> aijcusparse.cu:2622
>> [2]PETSC ERROR: #2 MatProductSymbolic_ABC_Basic() at
>> /global/u2/m/madams/petsc/src/mat/interface/matproduct.c:1159
>> [2]PETSC ERROR: #3 MatProductSymbolic() at
>> /global/u2/m/madams/petsc/src/mat/interface/matproduct.c:799
>> [2]PETSC ERROR: #4 MatPtAP() at
>> /global/u2/m/madams/petsc/src/mat/interface/matrix.c:9626
>> [2]PETSC ERROR: #5 PCGAMGCreateLevel_GAMG() at
>> /global/u2/m/madams/petsc/src/ksp/pc/impls/gamg/gamg.c:87
>> [2]PETSC ERROR: #6 PCSetUp_GAMG() at
>> /global/u2/m/madams/petsc/src/ksp/pc/impls/gamg/gamg.c:663
>> [2]PETSC ERROR: #7 PCSetUp() at
>> /global/u2/m/madams/petsc/src/ksp/pc/interface/precon.c:1014
>> [2]PETSC ERROR: #8 KSPSetUp() at
>> /global/u2/m/madams/petsc/src/ksp/ksp/interface/itfunc.c:406
>> [2]PETSC ERROR: #9 KSPSolve_Private() at
>> /global/u2/m/madams/petsc/src/ksp/ksp/interface/itfunc.c:850
>> [2]PETSC ERROR: #10 KSPSolve() at
>> /global/u2/m/madams/petsc/src/ksp/ksp/interface/itfunc.c:1084
>> [2]PETSC ERROR: #11 SNESSolve_NEWTONLS() at
>> /global/u2/m/madams/petsc/src/snes/impls/ls/ls.c:225
>> [2]PETSC ERROR: #12 SNESSolve() at
>> /global/u2/m/madams/petsc/src/snes/interface/snes.c:4769
>> [2]PETSC ERROR: #13 TSTheta_SNESSolve() at
>> /global/u2/m/madams/petsc/src/ts/impls/implicit/theta/theta.c:185
>> [2]PETSC ERROR: #14 TSStep_Theta() at
>> /global/u2/m/madams/petsc/src/ts/impls/implicit/theta/theta.c:223
>> [2]PETSC ERROR: #15 TSStep() at
>> /global/u2/m/madams/petsc/src/ts/interface/ts.c:3571
>> [2]PETSC ERROR: #16 TSSolve() at
>> /global/u2/m/madams/petsc/src/ts/interface/ts.c:3968
>> [2]PETSC ERROR: #17 main() at ex2.c:699
>>
>>
>>
>
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