topic Re:MPI_Comm_create ERROR in Intel® MPI Library

MPI_Comm_create ERROR

littlewang — Thu, 26 Aug 2021 07:49:56 GMT

I used mpirun to run the program and stopped when I got to MPI_Comm_create.The following write statement cannot be executed.

what should I do?Is there something wrong with my code?

Any advice would be greatly appreciated!

include 'mpif.h'
integer mpistat(MPI_STATUS_SIZE),ierr
integer comm_mpi, rank_mpi, size_mpi, rank_mpi_cctrl
integer comm_sol_mpi, new_grp , orig_grp
integer, dimension(:), allocatable, save :: ranks_sol
character*8 chnum

if(monitor_mode.gt.0) write(*,*)'P',rank_mpi,'in CONTACT_DEFORM'
! comm_mpi = MPI_COMM_WORLD
call mpi_comm_rank( MPI_COMM_WORLD, rank_mpi, ierr)
call mpi_comm_size( MPI_COMM_WORLD, size_mpi, ierr)
rank_mpi_cctrl = size_mpi - 1
if(monitor_mode.gt.0)write(*,*)'P',rank_mpi,'in CONTACT_DEFORM(0)'
!*** Create new communicator for solver ***
IF(NST.EQ.NSTART) THEN
if(monitor_mode.gt.0)
write(*,*)'P',rank_mpi, 'before create commun..'
!
if(rank_mpi.ne.size_mpi - 1) then !! if analyzer
allocate(ranks_sol(size_mpi - 1), stat=istat)
call check_memory_integer(size_mpi - 1, ranks_sol, ram,
+ istat, 'ranks_sol')
do i = 1, size_mpi - 1
ranks_sol(i) = i - 1
enddo

! allocate(orig_grp(size_mpi))
call MPI_Comm_group(MPI_COMM_WORLD, orig_grp, ierr)
! allocate(new_grp(size_mpi))
call MPI_Group_incl(orig_grp, size_mpi - 1, ranks_sol,new_grp, ierr )
call MPI_Comm_create(MPI_COMM_WORLD, new_grp, comm_sol_mpi, ierr)
write(*,*)"arrive 1"
endif
if(monitor_mode.gt.0)
write(*,*)'P',rank_mpi, 'after create commun..'
ENDIF

Re:MPI_Comm_create ERROR

VarshaS_Intel — Fri, 27 Aug 2021 07:57:35 GMT

Hi,

Thank you for providing the code snippet, can we also have the complete sample reproducer code and the command you used to compile and execute the code?

Also, could you please provide the OS details, Environment details, and MPI version you are using?

As you mentioned that the code stops running does it throw any error? If yes, could you please provide us the complete error log?

Thanks & Regards

Varsha

Re:MPI_Comm_create ERROR

VarshaS_Intel — Tue, 14 Sep 2021 09:06:08 GMT

Hi,

Did you mark our reply as the solution by mistake? If yes, could you please provide the details mentioned in the previous post?

Thanks & Regards

Varsha

Re: MPI_Comm_create ERROR

VarshaS_Intel — Tue, 21 Sep 2021 12:49:29 GMT

Hi,

We haven't heard back from you. Could you please provide an update on your issue?

Thanks & Regards

Varsha

Re:MPI_Comm_create ERROR

VarshaS_Intel — Wed, 29 Sep 2021 05:13:05 GMT

Hi,

We have not heard back from you. This thread will no longer be monitored by Intel. If you need further assistance, please post a new question.

Thanks & Regards

Varsha