Hi All,
I recompiled the hypre library with the same compiler and intel mkl,
then the error is gone.
Thanks,
Danyang
On 28/05/2014 4:10 PM, Danyang Su wrote:
Hi Barry,
I need further check on it. Running this executable file on another
machine results into mkl_intel_thread.dll missing error. I am not sure
at present if the mkl_intel_thread.dll version causes this problem.
Thanks,
Danyang
On 28/05/2014 4:01 PM, Barry Smith wrote:
Some possibilities:
Are you sure that the hypre was compiled with exactly the same MPI
as the that used to build PETSc?
On May 28, 2014, at 4:57 PM, Danyang Su <[email protected]> wrote:
Hi All,
I am testing my codes under windows with PETSc V3.4.4.
When running with option -pc_type hypre using 1 processor, the
program exactly uses 6 processors (my computer is 6 processors 12
threads)
6 threads? or 6 processes? It should not be possible for it to
use more processes then what you start the program with.
hypre can be configured to use OpenMP thread parallelism PLUS
MPI parallelism. Was it configured/compiled for that? If so you want
to turn that off,
configure and compile hypre before linking to PETSc so it does not
use OpenMP.
Are you sure you don’t have a bunch of zombie MPI processes
running from previous jobs that crashed. They suck up CPU but are not
involved in the current MPI run. Reboot the machine to get rid of
them all.
Barry
and the program crashed after many timesteps. The error information
is as follows:
job aborted:
[ranks] message
[0] fatal error
Fatal error in MPI_Comm_create: Internal MPI error!, error stack:
MPI_Comm_create(536).......: MPI_Comm_create(comm=0x84000000,
group=0xc80300f2, new_comm=0x000000001EA6DD30) failed
MPI_Comm_create(524).......:
MPIR_Comm_create_intra(209):
MPIR_Get_contextid(253)....: Too many communicators
When running with option -pc_type hypre using 2 processors or more,
the program exactly uses all the threads, making the system
seriously overburden and the program runs very slowly.
When running without -pc_type hypre, the program works fine without
any problem.
Does anybody have the same problem in windows.
Thanks and regards,
Danyang
