[petsc-users] Running problem with pc_type hypre

[Danyang Su]

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) 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