| a0c7f9aa | 11-Nov-2022 |
Samuel Khuvis <s.khuvis@x-scalesolutions.com> |
Add the perfstubs package to petsc.
Example usage:
Configure PETSc with: ./configure --download-mpich
--download-fblaslapack
Build PETSc
Setup TAU:
wget http://tau.uoregon.edu/tau.tgz
./configure
Add the perfstubs package to petsc.
Example usage:
Configure PETSc with: ./configure --download-mpich
--download-fblaslapack
Build PETSc
Setup TAU:
wget http://tau.uoregon.edu/tau.tgz
./configure -cc=mpicc -c++=mpicxx -mpi -bfd=download -unwind=download &&
make install
export PATH=<tau dir>/x86_64/bin:$PATH
Build and run PETSc example with TAU:
cd $PETSC_DIR/src/snes/tutorials
make ex56
mpirun -n 4 tau_exec ./ex56 <args>
This should produce 4 profile...* files with profile data that can be
viewed with paraprof/pprof:
Reading Profile files in profile.*
NODE 0;CONTEXT 0;THREAD 0:
---------------------------------------------------------------------------------------
%Time Exclusive Inclusive #Call #Subrs Inclusive Name
msec total msec usec/call
---------------------------------------------------------------------------------------
100.0 26 1,838 1 41322 1838424 .TAU
application
73.2 1 1,345 2 168 672950
SNESSolve
62.2 3 1,142 2 1282 571442
SNESJacobianEval
62.0 1,136 1,138 2 76 569494
DMPlexJacobianFE
60.1 0.046 1,105 1 32 1105001 Solve
1
15.2 87 279 5 11102 55943 Mesh
Setup
13.2 0.315 241 1 32 241765 Solve
0
7.8 80 144 38785 38785 4
MPI_Allreduce()
7.0 69 128 6 43386 21491
DualSpaceSetUp
6.2 1 114 4 54 28536
PCSetUp
6.0 12 110 2 892 55407
PCSetUp_GAMG+
3.9 70 70 1 0 70888
MPI_Init_thread()
3.7 68 68 41747 0 2 MPI
Collective Sync
3.6 8 66 4 3536 16548
SNESFunctionEval
2.6 45 48 171 171 281
MPI_Bcast()
1.9 34 34 7836 0 4
MPI_Barrier()
1.8 0.567 33 2 68 16912 GAMG
Coarsen
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