[petsc-users] MatSetValues error with ViennaCL types

Manuel Valera mvalera-w at sdsu.edu
Wed Aug 29 15:26:39 CDT 2018


 You may need to use just plain PCBJACOBI or PCASM for parallelism and then
> SAVIENNACL sequentially on each block.
>
>
Can you elaborate a little in how to do this? do you mean i can only use
viennacl in serial at the moment or this is a suggestion of a workaround on
how to make it work?


Thanks,







> > On Aug 29, 2018, at 1:50 PM, Manuel Valera <mvalera-w at sdsu.edu> wrote:
> >
> > Hi everyone,
> >
> > Thanks for your responses, i understand communicating on this way to
> this level of technicality can be hard, i still think we can work ways to
> solve this problem though,
> >
> > I can say the following at this point:
> >
> >       • Program works without issues in any other non-gpu
> preconditioner, just by calling -pc_type ### .
> >       • Program works correctly with ViennaCL preconditioners with
> mpirun -n 1, that is on one processor.
> >       • Program breaks with every ViennaCL preconditioner when
> attempting any more than 1 processors.
> >       • I haven't tried other GPU preconditioners because ViennaCL gave
> the best performance in 1 processor before.
> >       • I have made sure the matrix type is mpiaijviennacl as it is
> printed right before the error log.
> >       • I am attaching what i think are the backtrace logs of the run
> with two cores, as i have limited experience with this kind of debugging,
> and i cannot make sense of what they say, please let me know if you need me
> to do something else.
> >
> > Current options i can think of are giving you permission to clone my
> model repo, or for you to guide me trough the process remotely,
> >
> > Thanks,
> >
> > .-.-.-.-
> >
> >
> > The error i get is still:
> >
> >  Matrix type: mpiaijviennacl
>
> >  Of sizes:          125 x         125
> >  Matrix type: mpiaijviennacl
>
> >  Of sizes:          125 x         125
> > [0]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
> > [0]PETSC ERROR: No support for this operation for this object type
> > [0]PETSC ERROR: Currently only handles ViennaCL matrices
> > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
> for trouble shooting.
> > [0]PETSC ERROR: Petsc Development GIT revision: v3.9.2-549-g779ab53  GIT
> Date: 2018-05-31 17:31:13 +0300
> > [0]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named node50 by valera Wed
> Aug 29 11:43:25 2018
> > [0]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2 --CXXOPTFLAGS=-O2
> --FOPTFLAGS=-O2 --with-shared-libraries=1 --with-debugging=1 --with-cuda=1
> --CUDAFLAGS=-arch=sm_60 --with-blaslapack-dir=/usr/lib64
> --download-viennacl
> > [0]PETSC ERROR: #1 PCSetUp_SAVIENNACL() line 47 in
> /home/valera/petsc/src/ksp/pc/impls/saviennaclcuda/saviennacl.cu
> > [0]PETSC ERROR: #2 PCSetUp() line 932 in /home/valera/petsc/src/ksp/pc/
> interface/precon.c
> > [0]PETSC ERROR: #3 KSPSetUp() line 381 in /home/valera/petsc/src/ksp/
> ksp/interface/itfunc.c
> > [1]PETSC ERROR: ------------------------------
> ------------------------------------------
> > [1]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation,
> probably memory access out of range
> > [1]PETSC ERROR: Try option -start_in_debugger or
> -on_error_attach_debugger
> > [1]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/
> documentation/faq.html#valgrind
> > [1]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac
> OS X to find memory corruption errors
> > [1]PETSC ERROR: likely location of problem given in stack below
> > [1]PETSC ERROR: ---------------------  Stack Frames
> ------------------------------------
> > [1]PETSC ERROR: Note: The EXACT line numbers in the stack are not
> available,
> > [1]PETSC ERROR:       INSTEAD the line number of the start of the
> function
> > [1]PETSC ERROR:       is given.
> > [1]PETSC ERROR: [1] PetscTraceBackErrorHandler line 182
> /home/valera/petsc/src/sys/error/errtrace.c
> > [1]PETSC ERROR: [1] PetscError line 352 /home/valera/petsc/src/sys/
> error/err.c
> > [1]PETSC ERROR: [1] PCSetUp_SAVIENNACL line 45
> /home/valera/petsc/src/ksp/pc/impls/saviennaclcuda/saviennacl.cu
> > [1]PETSC ERROR: [1] PCSetUp line 894 /home/valera/petsc/src/ksp/pc/
> interface/precon.c
> > [1]PETSC ERROR: [1] KSPSetUp line 294 /home/valera/petsc/src/ksp/
> ksp/interface/itfunc.c
> > [1]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
> > [1]PETSC ERROR: Signal received
> > [1]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
> for trouble shooting.
> > [1]PETSC ERROR: Petsc Development GIT revision: v3.9.2-549-g779ab53  GIT
> Date: 2018-05-31 17:31:13 +0300
> > [1]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named node50 by valera Wed
> Aug 29 11:43:25 2018
> > [1]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2 --CXXOPTFLAGS=-O2
> --FOPTFLAGS=-O2 --with-shared-libraries=1 --with-debugging=1 --with-cuda=1
> --CUDAFLAGS=-arch=sm_60 --with-blaslapack-dir=/usr/lib64
> --download-viennacl
> > [1]PETSC ERROR: #1 User provided function() line 0 in  unknown file
> > ------------------------------------------------------------
> --------------
> > MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
> > with errorcode 59.
> >
> > NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
> > You may or may not see output from other processes, depending on
> > exactly when Open MPI kills them.
> > ------------------------------------------------------------
> --------------
> > [0]PETSC ERROR: ------------------------------
> ------------------------------------------
> > [0]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the
> batch system) has told this process to end
> > [0]PETSC ERROR: Try option -start_in_debugger or
> -on_error_attach_debugger
> > [0]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/
> documentation/faq.html#valgrind
> > [0]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac
> OS X to find memory corruption errors
> > [0]PETSC ERROR: likely location of problem given in stack below
> > [0]PETSC ERROR: ---------------------  Stack Frames
> ------------------------------------
> > [0]PETSC ERROR: Note: The EXACT line numbers in the stack are not
> available,
> > [0]PETSC ERROR:       INSTEAD the line number of the start of the
> function
> > [0]PETSC ERROR:       is given.
> > [0]PETSC ERROR: [0] MatSetErrorIfFailure line 116
> /home/valera/petsc/src/mat/utils/gcreate.c
> > [0]PETSC ERROR: [0] PCSetUp line 894 /home/valera/petsc/src/ksp/pc/
> interface/precon.c
> > [0]PETSC ERROR: [0] PCSetUp_SAVIENNACL line 45
> /home/valera/petsc/src/ksp/pc/impls/saviennaclcuda/saviennacl.cu
> > [0]PETSC ERROR: [0] PCSetUp line 894 /home/valera/petsc/src/ksp/pc/
> interface/precon.c
> > [0]PETSC ERROR: [0] KSPSetUp line 294 /home/valera/petsc/src/ksp/
> ksp/interface/itfunc.c
> > [0]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
> > [0]PETSC ERROR: Signal received
> > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
> for trouble shooting.
> > [0]PETSC ERROR: Petsc Development GIT revision: v3.9.2-549-g779ab53  GIT
> Date: 2018-05-31 17:31:13 +0300
> > [0]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named node50 by valera Wed
> Aug 29 11:43:25 2018
> > [0]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2 --CXXOPTFLAGS=-O2
> --FOPTFLAGS=-O2 --with-shared-libraries=1 --with-debugging=1 --with-cuda=1
> --CUDAFLAGS=-arch=sm_60 --with-blaslapack-dir=/usr/lib64
> --download-viennacl
> > [0]PETSC ERROR: #4 User provided function() line 0 in  unknown file
> > [node50:32783] 1 more process has sent help message help-mpi-api.txt /
> mpi-abort
> > [node50:32783] Set MCA parameter "orte_base_help_aggregate" to 0 to see
> all help / error messages
> >
> >
> > On Tue, Aug 28, 2018 at 9:34 PM, Karl Rupp <rupp at iue.tuwien.ac.at>
> wrote:
> > Hi Manuel,
> >
> > as Barry said, it is hard for us to provide any help without having a
> more complete picture of what is going on.
> >
> > The error you report seems to come from the AMG preconditioner in
> ViennaCL. This can have many origins. Do other preconditioners run without
> error? Can you run in a debugger and provide a complete backtrace?
> >
> > Thanks and best regards,
> > Karli
> >
> >
> > On 08/29/2018 01:33 AM, Manuel Valera wrote:
> > Talked too fast,
> >
> > After fixing that problem, i tried more than one mpi processor and got
> the following:
> >
> >   Matrix type: mpiaijviennacl
> >   Of sizes:          125 x         125
> >   Matrix type: mpiaijviennacl
> >   Of sizes:          125 x         125
> > [0]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
> > [0]PETSC ERROR: No support for this operation for this object type
> > [0]PETSC ERROR: Currently only handles ViennaCL matrices
> > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
> for trouble shooting.
> > [0]PETSC ERROR: Petsc Development GIT revision: v3.9.2-549-g779ab53  GIT
> Date: 2018-05-31 17:31:13 +0300
> > [0]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named node50 by valera Tue
> Aug 28 16:30:02 2018
> > [0]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2 --CXXOPTFLAGS=-O2
> --FOPTFLAGS=-O2 --with-shared-libraries=1 --with-debugging=1 --with-cuda=1
> --CUDAFLAGS=-arch=sm_60 --with-blaslapack-dir=/usr/lib64
> --download-viennacl
> > [0]PETSC ERROR: #1 PCSetUp_SAVIENNACL() line 47 in
> /home/valera/petsc/src/ksp/pc/impls/saviennaclcuda/saviennacl.cu <
> http://saviennacl.cu>
> > [0]PETSC ERROR: #2 PCSetUp() line 932 in /home/valera/petsc/src/ksp/pc/
> interface/precon.c
> > [1]PETSC ERROR: ------------------------------
> ------------------------------------------
> > [1]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation,
> probably memory access out of range
> > [1]PETSC ERROR: Try option -start_in_debugger or
> -on_error_attach_debugger
> > [1]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/
> documentation/faq.html#valgrind
> > [1]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac
> OS X to find memory corruption errors
> > [1]PETSC ERROR: likely location of problem given in stack below
> > [1]PETSC ERROR: ---------------------  Stack Frames
> ------------------------------------
> > [1]PETSC ERROR: Note: The EXACT line numbers in the stack are not
> available,
> > [1]PETSC ERROR:       INSTEAD the line number of the start of the
> function
> > [1]PETSC ERROR:       is given.
> > [1]PETSC ERROR: [1] PetscTraceBackErrorHandler line 182
> /home/valera/petsc/src/sys/error/errtrace.c
> > [1]PETSC ERROR: [1] PetscError line 352 /home/valera/petsc/src/sys/
> error/err.c
> > [1]PETSC ERROR: [1] PCSetUp_SAVIENNACL line 45
> /home/valera/petsc/src/ksp/pc/impls/saviennaclcuda/saviennacl.cu <
> http://saviennacl.cu>
> >
> > [1]PETSC ERROR: [1] PCSetUp line 894 /home/valera/petsc/src/ksp/pc/
> interface/precon.c
> > [1]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
> > [1]PETSC ERROR: Signal received
> > [1]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
> for trouble shooting.
> > [1]PETSC ERROR: Petsc Development GIT revision: v3.9.2-549-g779ab53  GIT
> Date: 2018-05-31 17:31:13 +0300
> > [1]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named node50 by valera Tue
> Aug 28 16:30:02 2018
> > [1]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2 --CXXOPTFLAGS=-O2
> --FOPTFLAGS=-O2 --with-shared-libraries=1 --with-debugging=1 --with-cuda=1
> --CUDAFLAGS=-arch=sm_60 --with-blaslapack-dir=/usr/lib64
> --download-viennacl
> > [1]PETSC ERROR: #1 User provided function() line 0 in  unknown file
> > ------------------------------------------------------------
> --------------
> > MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
> > with errorcode 59.
> >
> > NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
> > You may or may not see output from other processes, depending on
> > exactly when Open MPI kills them.
> > ------------------------------------------------------------
> --------------
> > [0]PETSC ERROR: ------------------------------
> ------------------------------------------
> > [0]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the
> batch system) has told this process to end
> > [0]PETSC ERROR: Try option -start_in_debugger or
> -on_error_attach_debugger
> > [0]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/
> documentation/faq.html#valgrind
> > [0]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac
> OS X to find memory corruption errors
> > [0]PETSC ERROR: likely location of problem given in stack below
> > [0]PETSC ERROR: ---------------------  Stack Frames
> ------------------------------------
> > [0]PETSC ERROR: Note: The EXACT line numbers in the stack are not
> available,
> > [0]PETSC ERROR:       INSTEAD the line number of the start of the
> function
> > [0]PETSC ERROR:       is given.
> > [0]PETSC ERROR: [0] PetscCommDuplicate line 130
> /home/valera/petsc/src/sys/objects/tagm.c
> > [0]PETSC ERROR: [0] PetscHeaderCreate_Private line 34
> /home/valera/petsc/src/sys/objects/inherit.c
> > [0]PETSC ERROR: [0] ISCreate line 35 /home/valera/petsc/src/vec/is/
> is/interface/isreg.c
> > [0]PETSC ERROR: [0] ISCreateGeneral line 668
> /home/valera/petsc/src/vec/is/is/impls/general/general.c
> > [0]PETSC ERROR: [0] PCSetUp_SAVIENNACL line 45
> /home/valera/petsc/src/ksp/pc/impls/saviennaclcuda/saviennacl.cu <
> http://saviennacl.cu>
> > [0]PETSC ERROR: [0] PCSetUp line 894 /home/valera/petsc/src/ksp/pc/
> interface/precon.c
> > [0]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
> > [0]PETSC ERROR: Signal received
> > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
> for trouble shooting.
> > [0]PETSC ERROR: Petsc Development GIT revision: v3.9.2-549-g779ab53  GIT
> Date: 2018-05-31 17:31:13 +0300
> > [0]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named node50 by valera Tue
> Aug 28 16:30:02 2018
> > [0]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2 --CXXOPTFLAGS=-O2
> --FOPTFLAGS=-O2 --with-shared-libraries=1 --with-debugging=1 --with-cuda=1
> --CUDAFLAGS=-arch=sm_60 --with-blaslapack-dir=/usr/lib64
> --download-viennacl
> > [0]PETSC ERROR: #3 User provided function() line 0 in  unknown file
> > [node50:30582] 1 more process has sent help message help-mpi-api.txt /
> mpi-abort
> > [node50:30582] Set MCA parameter "orte_base_help_aggregate" to 0 to see
> all help / error messages
> >
> >
> >
> > It is currently running in 1 mpi processor + GPU but i would like to
> call at least 16 mpi processors + GPU to do the rest of the data management
> who is not part of the main laplacian on the mpi and the laplacian solution
> on the GPU, is this currently possible?
> >
> > Thanks for your help,
> >
> >
> >
> > On Tue, Aug 28, 2018 at 4:21 PM, Manuel Valera <mvalera-w at sdsu.edu
> <mailto:mvalera-w at sdsu.edu>> wrote:
> >
> >     Ok, i found the culprit and we can close this thread,
> >
> >     The problem was a missing variable for setting the maximum columns,
> >     which i deleted at some point without realizing. The error message
> >     was too ambiguous to catch this so i had to compare with a previous
> >     working version of the arguments of MatSetValues, it was evident
> then.
> >
> >     Good news is that i can now set the values with the viennacl types
> too,
> >
> >     Thanks for your kind help,
> >
> >     Manuel
> >
> >     On Tue, Aug 28, 2018 at 11:25 AM, Smith, Barry F.
> >     <bsmith at mcs.anl.gov <mailto:bsmith at mcs.anl.gov>> wrote:
> >
> >
> >             1) PetscMalloc() is never valid or needed in Fortran
> >
> >              2) there is no reason to use DMSetMatrixPreallocateOnly()
> >         just use DMCreateMatrix() assuming that using a DM (DMDA,
> >         DMPLEX, etc) is suitable for your problem.
> >
> >              At this end we are totally guessing at what you are doing
> >         and so have little help we can provide.  A simple, nonworking
> >         code that tries to do what you would need would help us a great
> >         deal in understanding that you are trying to do.
> >
> >               Barry
> >
> >
> >
> >
> >
> >          > On Aug 28, 2018, at 1:18 PM, Manuel Valera
> >         <mvalera-w at sdsu.edu <mailto:mvalera-w at sdsu.edu>> wrote:
> >          >
> >          > Matthew, PetscMalloc gives the same error,
> >          >
> >          > Barry, it would be very hard for me to get the code to a
> >         minimum working example, i guess all i need to understand is how
> >         to setup a DM matrix with DMSetMatrixPreallocateOnly() instead
> >         of MatMPIAIJSetPreallocation() as we were doing before, is there
> >         a simple example who does this in Fortran?
> >          >
> >          > Is the PetscMalloc call needed? is 'call
> >         PetscMalloc(1,row,ierr)' a valid, compilable call to
> >         PetscMalloc? what other reason may there be for this error to
> >         happen ?
> >          >
> >          > Just remembering, that trying to setup the matrix with the
> >         MatAIJSetPreallocation() brings up an error to acknowledge the
> >         viennacl datatypes and that's why i'm trying to make this change
> >         on your recommendation,
> >          >
> >          > Thanks for your help,
> >          >
> >          >
> >          >
> >          >
> >          >
> >          > On Mon, Aug 27, 2018 at 7:35 PM, Smith, Barry F.
> >         <bsmith at mcs.anl.gov <mailto:bsmith at mcs.anl.gov>> wrote:
> >          >
> >          >    Send your code in a way we can compile and run it; it must
> >         be some simple issue that is hard to communicate in email.
> >          >
> >          >    Barry
> >          >
> >          >
> >          > > On Aug 27, 2018, at 5:51 PM, Manuel Valera
> >         <mvalera-w at sdsu.edu <mailto:mvalera-w at sdsu.edu>> wrote:
> >          > >
> >          > > Hello everyone,
> >          > >
> >          > > I just had time to work on this again, and checked the code
> >         for errors on the matrix entries, this is the exact code i was
> >         using for creating the matrix without
> >         DMSetMatrixPreallocateOnly, using MatMPIAIJSetPreallocation and
> >         it worked that way, but trying this way i get the same 'Column
> >         too large' error using any number at the column position of
> >         MatSetValues,
> >          > >
> >          > > I have set up my code to print the column argument (n) of
> >         MatSetValues and in this case is 7 (lower than 124), it still
> >         gives error, even entering a specific number in the MatSetValues
> >         column argument position gives the same error.
> >          > >
> >          > > So next i went back to ex.50 here:
> >         http://www.mcs.anl.gov/petsc/petsc-current/src/ts/examples/
> tutorials/ex50.c.html
> >         <http://www.mcs.anl.gov/petsc/petsc-current/src/ts/examples/
> tutorials/ex50.c.html>
> >         and it has a very similar structure except the PetscMalloc1()
> >         call, so i tried adding that and got:
> >          > >
> >          > >  /home/valera/ParGCCOM/Src/DMDALaplacian.f90:114: undefined
> >         reference to `petscmalloc1_'
> >          > >
> >          > > Any ideas on this behaviour?
> >          > >
> >          > > Thanks so much,
> >          > >
> >          > >
> >          > >
> >          > >
> >          > >
> >          > >
> >          > > On Thu, Aug 16, 2018 at 11:20 AM, Smith, Barry F.
> >         <bsmith at mcs.anl.gov <mailto:bsmith at mcs.anl.gov>> wrote:
> >          > >
> >          > > Column too large: col 10980 max 124
> >          > >
> >          > >    You need to check the code that is generating the matrix
> >         entries. The matrix has 124 columns but you are attempting to
> >         put a value at column 10980
> >          > >
> >          > >    Barry
> >          > >
> >          > >
> >          > > > On Aug 15, 2018, at 9:44 PM, Manuel Valera
> >         <mvalera-w at sdsu.edu <mailto:mvalera-w at sdsu.edu>> wrote:
> >          > > >
> >          > > > Thanks Matthew and Barry,
> >          > > >
> >          > > > Now my code looks like:
> >          > > >
> >          > > > call DMSetMatrixPreallocateOnly(daDummy,PETSC_TRUE,ierr)
> >          > > > call DMSetMatType(daDummy,MATMPIAIJVIENNACL,ierr)
> >          > > > call DMSetVecType(daDummy,VECMPIVIENNACL,ierr)
> >          > > > call DMCreateMatrix(daDummy,A,ierr)
> >          > > > call MatSetFromOptions(A,ierr)
> >          > > > call MatSetUp(A,ierr)
> >          > > > [...]
> >          > > >             call
> >         MatSetValues(A,1,row,sumpos,pos(0:iter-1),vals(0:iter-1),
> INSERT_VALUES,ierr)
> >          > > > [...]
> >          > > > call MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY, ierr)
> >          > > > call MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY, ierr)
> >          > > >
> >          > > > And i get a different error, now is:
> >          > > >
> >          > > > [0]PETSC ERROR: --------------------- Error Message
> >         --------------------------------------------------------------
> >          > > > [0]PETSC ERROR: Argument out of range
> >          > > > [0]PETSC ERROR: Column too large: col 10980 max 124
> >          > > > [0]PETSC ERROR: See
> >         http://www.mcs.anl.gov/petsc/documentation/faq.html
> >         <http://www.mcs.anl.gov/petsc/documentation/faq.html> for
> >         trouble shooting.
> >          > > > [0]PETSC ERROR: Petsc Development GIT revision:
> >         v3.9.2-549-g779ab53  GIT Date: 2018-05-31 17:31:13 +0300
> >          > > > [0]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named node50
> >         by valera Wed Aug 15 19:40:00 2018
> >          > > > [0]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> >         --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2
> >         --CXXOPTFLAGS=-O2 --FOPTFLAGS=-O2 --with-shared-libraries=1
> >         --with-debugging=1 --with-cuda=1 --CUDAFLAGS=-arch=sm_60
> >         --with-blaslapack-dir=/usr/lib64 --download-viennacl
> >          > > > [0]PETSC ERROR: #1 MatSetValues_SeqAIJ() line 442 in
> >         /home/valera/petsc/src/mat/impls/aij/seq/aij.c
> >          > > > [0]PETSC ERROR: #2 MatSetValues() line 1339 in
> >         /home/valera/petsc/src/mat/interface/matrix.c
> >          > > >
> >          > > >
> >          > > > Thanks again,
> >          > > >
> >          > > >
> >          > > >
> >          > > >
> >          > > >
> >          > > >
> >          > > >
> >          > > >
> >          > > > On Wed, Aug 15, 2018 at 7:02 PM, Smith, Barry F.
> >         <bsmith at mcs.anl.gov <mailto:bsmith at mcs.anl.gov>> wrote:
> >          > > >
> >          > > >   Should be
> >          > > >
> >          > > > call DMSetMatType(daDummy,MATMPIAIJVIENNACL,ierr)
> >          > > > call DMSetVecType(daDummy,VECMPIVIENNACL,ierr)
> >          > > > call DMCreateMatrix(daDummy,A,ierr)
> >          > > >
> >          > > >   and remove the rest. You need to set the type of Mat
> >         you want the DM to return BEFORE you create the matrix.
> >          > > >
> >          > > >   Barry
> >          > > >
> >          > > >
> >          > > >
> >          > > > > On Aug 15, 2018, at 4:45 PM, Manuel Valera
> >         <mvalera-w at sdsu.edu <mailto:mvalera-w at sdsu.edu>> wrote:
> >          > > > >
> >          > > > > Ok thanks for clarifying that, i wasn't sure if there
> >         were different types,
> >          > > > >
> >          > > > > Here is a stripped down version of my code, it seems
> >         like the preallocation is working now since the matrix
> >         population part is working without problem, but here it is for
> >         illustration purposes:
> >          > > > >
> >          > > > > call DMSetMatrixPreallocateOnly(
> daDummy,PETSC_TRUE,ierr)
> >          > > > > call DMCreateMatrix(daDummy,A,ierr)
> >          > > > > call MatSetFromOptions(A,ierr)
> >          > > > > call DMSetMatType(daDummy,MATMPIAIJVIENNACL,ierr)
> >          > > > > call DMSetVecType(daDummy,VECMPIVIENNACL,ierr)
> >          > > > > call
> >         MatMPIAIJSetPreallocation(A,19,PETSC_NULL_INTEGER,19,
> PETSC_NULL_INTEGER,ierr)
> >          > > > > call MatSetUp(A,ierr)
> >          > > > > [...]
> >          > > > >             call
> >         MatSetValues(A,1,row,sumpos,pos(0:iter-1),vals(0:iter-1),
> INSERT_VALUES,ierr)
> >          > > > > [...]
> >          > > > > call MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY, ierr)
> >          > > > > call MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY, ierr)
> >          > > > >
> >          > > > > Adding the first line there did the trick,
> >          > > > >
> >          > > > > Now the problem seems to be the program is not
> >         recognizing the matrix as ViennaCL type when i try with more
> >         than one processor, i get now:
> >          > > > >
> >          > > > > [0]PETSC ERROR: --------------------- Error Message
> >         --------------------------------------------------------------
> >          > > > > [0]PETSC ERROR: No support for this operation for this
> >         object type
> >          > > > > [0]PETSC ERROR: Currently only handles ViennaCL matrices
> >          > > > > [0]PETSC ERROR: See
> >         http://www.mcs.anl.gov/petsc/documentation/faq.html
> >         <http://www.mcs.anl.gov/petsc/documentation/faq.html> for
> >         trouble shooting.
> >          > > > > [0]PETSC ERROR: Petsc Development GIT revision:
> >         v3.9.2-549-g779ab53  GIT Date: 2018-05-31 17:31:13 +0300
> >          > > > > [0]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named
> >         node50 by valera Wed Aug 15 14:44:22 2018
> >          > > > > [0]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> >         --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2
> >         --CXXOPTFLAGS=-O2 --FOPTFLAGS=-O2 --with-shared-libraries=1
> >         --with-debugging=1 --with-cuda=1 --CUDAFLAGS=-arch=sm_60
> >         --with-blaslapack-dir=/usr/lib64 --download-viennacl
> >          > > > > [0]PETSC ERROR: #1 PCSetUp_SAVIENNACL() line 47 in
> >         /home/valera/petsc/src/ksp/pc/impls/saviennaclcuda/saviennacl.cu
> >         <http://saviennacl.cu>
> >          > > > > [0]PETSC ERROR: #2 PCSetUp() line 932 in
> >         /home/valera/petsc/src/ksp/pc/interface/precon.c
> >          > > > > [0]PETSC ERROR: #3 KSPSetUp() line 381 in
> >         /home/valera/petsc/src/ksp/ksp/interface/itfunc.c
> >          > > > >
> >          > > > > When running with:
> >          > > > >
> >          > > > > mpirun -n 1 ./gcmLEP.GPU
> >         tc=TestCases/LockRelease/LE_6x6x6/ jid=tiny_cuda_test_n2
> >         -ksp_type cg -dm_vec_type viennacl -dm_mat_type aijviennacl
> >         -pc_type saviennacl -log_view
> >          > > > >
> >          > > > >
> >          > > > > Thanks,
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > > On Wed, Aug 15, 2018 at 2:32 PM, Matthew Knepley
> >         <knepley at gmail.com <mailto:knepley at gmail.com>> wrote:
> >          > > > > On Wed, Aug 15, 2018 at 5:20 PM Manuel Valera
> >         <mvalera-w at sdsu.edu <mailto:mvalera-w at sdsu.edu>> wrote:
> >          > > > > It seems to be resumed on: I do not know how to
> >         preallocate a DM Matrix correctly.
> >          > > > >
> >          > > > > There is only one matrix type, Mat. There are no
> >         separate DM matrices. A DM can create a matrix for you
> >          > > > > using DMCreateMatrix(), but that is a Mat and it is
> >         preallocated correctly. I am not sure what you are doing.
> >          > > > >
> >          > > > >   Thanks,
> >          > > > >
> >          > > > >     Matt
> >          > > > >
> >          > > > > The interesting part is that it only breaks when i need
> >         to populate a GPU matrix from MPI, so kudos on that, but it
> >         seems i need to do better on my code to get this setup working,
> >          > > > >
> >          > > > > Any help would be appreciated,
> >          > > > >
> >          > > > > Thanks,
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > > On Wed, Aug 15, 2018 at 2:15 PM, Matthew Knepley
> >         <knepley at gmail.com <mailto:knepley at gmail.com>> wrote:
> >          > > > > On Wed, Aug 15, 2018 at 4:53 PM Manuel Valera
> >         <mvalera-w at sdsu.edu <mailto:mvalera-w at sdsu.edu>> wrote:
> >          > > > > Thanks Matthew,
> >          > > > >
> >          > > > > I try to do that when calling:
> >          > > > >
> >          > > > > call
> >         MatMPIAIJSetPreallocation(A,19,PETSC_NULL_INTEGER,19,
> PETSC_NULL_INTEGER,ierr)
> >          > > > >
> >          > > > > But i am not aware on how to do this for the DM if it
> >         needs something more specific/different,
> >          > > > >
> >          > > > > The error says that your preallocation is wrong for the
> >         values you are putting in. The DM does not control either,
> >          > > > > so I do not understand your email.
> >          > > > >
> >          > > > >   Thanks,
> >          > > > >
> >          > > > >      Matt
> >          > > > >
> >          > > > > Thanks,
> >          > > > >
> >          > > > > On Wed, Aug 15, 2018 at 1:51 PM, Matthew Knepley
> >         <knepley at gmail.com <mailto:knepley at gmail.com>> wrote:
> >          > > > > On Wed, Aug 15, 2018 at 4:39 PM Manuel Valera
> >         <mvalera-w at sdsu.edu <mailto:mvalera-w at sdsu.edu>> wrote:
> >          > > > > Hello PETSc devs,
> >          > > > >
> >          > > > > I am running into an error when trying to use the
> >         MATMPIAIJVIENNACL Matrix type in MPI calls, the same code runs
> >         for MATSEQAIJVIENNACL type in one processor. The error happens
> >         when calling MatSetValues for this specific configuration. It
> >         does not occur when using MPI DMMatrix types only.
> >          > > > >
> >          > > > > The DM properly preallocates the matrix. I am assuming
> >         you do not here.
> >          > > > >
> >          > > > >    Matt
> >          > > > >
> >          > > > > Any help will be appreciated,
> >          > > > >
> >          > > > > Thanks,
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > > My program call:
> >          > > > >
> >          > > > > mpirun -n 2 ./gcmLEP.GPU
> >         tc=TestCases/LockRelease/LE_6x6x6/ jid=tiny_cuda_test_n2
> >         -ksp_type cg -dm_vec_type viennacl -dm_mat_type aijviennacl
> >         -pc_type saviennacl -log_view
> >          > > > >
> >          > > > >
> >          > > > > The error (repeats after each MatSetValues call):
> >          > > > >
> >          > > > > [1]PETSC ERROR: --------------------- Error Message
> >         --------------------------------------------------------------
> >          > > > > [1]PETSC ERROR: Argument out of range
> >          > > > > [1]PETSC ERROR: Inserting a new nonzero at global
> >         row/column (75, 50) into matrix
> >          > > > > [1]PETSC ERROR: See
> >         http://www.mcs.anl.gov/petsc/documentation/faq.html
> >         <http://www.mcs.anl.gov/petsc/documentation/faq.html> for
> >         trouble shooting.
> >          > > > > [1]PETSC ERROR: Petsc Development GIT revision:
> >         v3.9.2-549-g779ab53  GIT Date: 2018-05-31 17:31:13 +0300
> >          > > > > [1]PETSC ERROR: ./gcmLEP.GPU on a cuda-debug named
> >         node50 by valera Wed Aug 15 13:10:44 2018
> >          > > > > [1]PETSC ERROR: Configure options PETSC_ARCH=cuda-debug
> >         --with-mpi-dir=/usr/lib64/openmpi --COPTFLAGS=-O2
> >         --CXXOPTFLAGS=-O2 --FOPTFLAGS=-O2 --with-shared-libraries=1
> >         --with-debugging=1 --with-cuda=1 --CUDAFLAGS=-arch=sm_60
> >         --with-blaslapack-dir=/usr/lib64 --download-viennacl
> >          > > > > [1]PETSC ERROR: #1 MatSetValues_MPIAIJ() line 608 in
> >         /home/valera/petsc/src/mat/impls/aij/mpi/mpiaij.c
> >          > > > > [1]PETSC ERROR: #2 MatSetValues() line 1339 in
> >         /home/valera/petsc/src/mat/interface/matrix.c
> >          > > > >
> >          > > > >
> >          > > > > My Code structure:
> >          > > > >
> >          > > > > call DMCreateMatrix(daDummy,A,ierr)
> >          > > > > call MatSetFromOptions(A,ierr)
> >          > > > > call MPI_Comm_size(PETSC_COMM_WORLD, numprocs, ierr)
> >          > > > > if (numprocs > 1) then  ! set matrix type parallel
> >          > > > >     ! Get local size
> >          > > > >     call DMDACreateNaturalVector(daDummy,Tmpnat,ierr)
> >          > > > >     call VecGetLocalSize(Tmpnat,locsize,ierr)
> >          > > > >     call VecDestroy(Tmpnat,ierr)
> >          > > > >     ! Set matrix
> >          > > > > #ifdef GPU
> >          > > > >     call MatSetType(A,MATAIJVIENNACL,ierr)
> >          > > > >     call DMSetMatType(daDummy,MATMPIAIJVIENNACL,ierr)
> >          > > > >     call DMSetVecType(daDummy,VECMPIVIENNACL,ierr)
> >          > > > >     print*,'SETTING GPU TYPES'
> >          > > > > #else
> >          > > > >     call DMSetMatType(daDummy,MATMPIAIJ,ierr)
> >          > > > >     call DMSetMatType(daDummy,VECMPI,ierr)
> >          > > > >     call MatSetType(A,MATMPIAIJ,ierr)!
> >          > > > > #endif
> >          > > > >     call
> >         MatMPIAIJSetPreallocation(A,19,PETSC_NULL_INTEGER,19,
> PETSC_NULL_INTEGER,ierr)
> >          > > > > else                    ! set matrix type sequential
> >          > > > > #ifdef GPU
> >          > > > >     call DMSetMatType(daDummy,MATSEQAIJVIENNACL,ierr)
> >          > > > >     call DMSetVecType(daDummy,VECSEQVIENNACL,ierr)
> >          > > > >     call MatSetType(A,MATSEQAIJVIENNACL,ierr)
> >          > > > >     print*,'SETTING GPU TYPES'
> >          > > > > #else
> >          > > > >     call DMSetMatType(daDummy,MATSEQAIJ,ierr)
> >          > > > >     call DMSetMatType(daDummy,VECSEQ,ierr)
> >          > > > >     call MatSetType(A,MATSEQAIJ,ierr)
> >          > > > > #endif
> >          > > > > call MatSetUp(A,ierr)
> >          > > > > call
> >         getCenterInfo(daGrid,xstart,ystart,zstart,xend,yend,zend)
> >          > > > >
> >          > > > > do k=zstart,zend-1
> >          > > > >     do j=ystart,yend-1
> >          > > > >         do i=xstart,xend-1
> >          > > > > [..]
> >          > > > >            call
> >         MatSetValues(A,1,row,sumpos,pos(0:iter-1),vals(0:iter-1),
> INSERT_VALUES,ierr)
> >          > > > > [..]
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > > --
> >          > > > > 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/
> >         <https://www.cse.buffalo.edu/%7Eknepley/>
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > > --
> >          > > > > 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/
> >         <https://www.cse.buffalo.edu/%7Eknepley/>
> >          > > > >
> >          > > > >
> >          > > > >
> >          > > > > --
> >          > > > > 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/
> >         <https://www.cse.buffalo.edu/%7Eknepley/>
> >          > > > >
> >          > > >
> >          > > >
> >          > >
> >          > >
> >          >
> >          >
> >
> >
> >
> >
> > <backt-2.log><backt.log>
>
>
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