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MPI ISend/IRecv deadlock on AWS EC2

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Hi, I'm encountering an unexpected deadlock in this Fortran test program, compiled using Parallel Studio XE 2017 Update 4 on an Amazon EC2 cluster (Linux system).

$ mpiifort -traceback nbtest.f90 -o test.x

 

On one node, the program runs just fine, but any more and it deadlocks, leading me to suspect a internode comm failure, but my knowledge in this area is lacking. FYI, the test code is hardcoded to be run on 16 cores.

Any help or insight is appreciated!

Danny

Code

program nbtest

  use mpi
  implicit none

  !***____________________ Definitions _______________
  integer, parameter :: r4 = SELECTED_REAL_KIND(6,37)
  integer :: irank

  integer, allocatable :: gstart1(:)
  integer, allocatable :: gend1(:)
  integer, allocatable :: gstartz(:)
  integer, allocatable :: gendz(:)
  integer, allocatable :: ind_fl(:)
  integer, allocatable :: blen(:),disp(:)

  integer, allocatable :: ddt_recv(:),ddt_send(:)

  real(kind=r4), allocatable :: tmp_array(:,:,:)
  real(kind=r4), allocatable :: tmp_in(:,:,:)

  integer :: cnt, i, j
  integer :: count_send, count_recv

  integer :: ssend
  integer :: srecv
  integer :: esend
  integer :: erecv
  integer :: erecv2, srecv2

  integer :: mpierr, ierr, old, typesize, typesize2,typesize3
  integer :: mpi_requests(2*16)
  integer :: mpi_status_arr(MPI_STATUS_SIZE,2*16)

  character(MPI_MAX_ERROR_STRING) :: string
  integer :: resultlen
  integer :: errorcode
!***________Code___________________________
  !*_________initialize MPI__________________
  call MPI_INIT(ierr)
  call MPI_COMM_RANK(MPI_COMM_WORLD,irank,ierr)
  call MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN,ierr)

  allocate(gstart1(0:15), &
       gend1(0:15), &
       gstartz(0:15), &
       gendz(0:15))


  gstart1(0) = 1
  gend1(0) = 40
  gstartz(0) = 1
  gendz(0) = 27

  do i = 2, 16
     gstart1(i-1) = gend1(i-2) + 1
     gend1(i-1)   = gend1(i-2) + 40
     gstartz(i-1) = gendz(i-2) + 1
     gendz(i-1)   = gendz(i-2) + 27
  end do

  allocate(ind_fl(15))
  cnt = 1
  do i = 1, 16
     if ( (i-1) == irank ) cycle
     ind_fl(cnt) = (i - 1)
     cnt = cnt + 1
  end do
  cnt = 1
  do i = 1, 16
     if ( (i-1) == irank ) cycle
     ind_fl(cnt) = (i - 1)
     cnt = cnt + 1
  end do

  !*_________new datatype__________________
  allocate(ddt_recv(16),ddt_send(16))
  allocate(blen(60), disp(60))
  call mpi_type_size(MPI_REAL,typesize,ierr)

  do i = 1, 15
     call mpi_type_contiguous(3240,MPI_REAL, &
          ddt_send(i),ierr)
     call mpi_type_commit(ddt_send(i),ierr)

     srecv2 = (gstartz(ind_fl(i))-1)*2+1
     erecv2 = gendz(ind_fl(i))*2
     blen(:) = erecv2 - srecv2 + 1
     do j = 1, 60
        disp(j) = (j-1)*(852) + srecv2 - 1
     end do

     call mpi_type_indexed(60,blen,disp,MPI_REAL, &
          ddt_recv(i),ierr)
     call mpi_type_commit(ddt_recv(i),ierr)
     old = ddt_recv(i)
     call mpi_type_create_resized(old,int(0,kind=MPI_ADDRESS_KIND),&
          int(51120*typesize,kind=MPI_ADDRESS_KIND),&
          ddt_recv(i),ierr)
     call mpi_type_free(old,ierr)
     call mpi_type_commit(ddt_recv(i),ierr)

  end do


  allocate(tmp_array(852,60,40))
  allocate(tmp_in(54,60,640))
  tmp_array = 0.0_r4
  tmp_in = 0.0_r4

  ssend = gstart1(irank)
  esend = gend1(irank)
  cnt = 0

  do i = 1, 15
     srecv = gstart1(ind_fl(i))
     erecv = gend1(ind_fl(i))

     ! Calculate the number of bytes to send (for MPI_SEND)
     count_send = erecv - srecv + 1
     count_recv = esend - ssend + 1
     cnt = cnt + 1

     call mpi_irecv(tmp_array,count_recv,ddt_recv(i), &
          ind_fl(i),ind_fl(i),MPI_COMM_WORLD,mpi_requests(cnt),ierr)

     cnt = cnt + 1
     call mpi_isend(tmp_in(:,:,srecv:erecv), &
          count_send,ddt_send(i),ind_fl(i), &
          irank,MPI_COMM_WORLD,mpi_requests(cnt),ierr)

  end do

  call mpi_waitall(cnt,mpi_requests(1:cnt),mpi_status_arr(:,1:cnt),ierr)

  if (ierr /=  MPI_SUCCESS) then
     do i = 1,cnt
        errorcode = mpi_status_arr(MPI_ERROR,i)
        if (errorcode /= 0 .AND. errorcode /= MPI_ERR_PENDING) then
           call MPI_Error_string(errorcode,string,resultlen,mpierr)
           print *, "rank: ",irank, string
           !call MPI_Abort(MPI_COMM_WORLD,errorcode,ierr)
        end if
     end do
  end if

  deallocate(tmp_array)
  deallocate(tmp_in)

  print *, "great success"

  call MPI_FINALIZE(ierr)

end program nbtest

 

Running gdb on one of the processors during the deadlock:

 

(gdb) bt

#0  0x00002acb4c6bf733 in __select_nocancel () from /lib64/libc.so.6

#1  0x00002acb4b496a2e in MPID_nem_tcp_connpoll () from /opt/intel/psxe_runtime_2017.4.196/linux/mpi/intel64/lib/libmpi.so.12

#2  0x00002acb4b496048 in MPID_nem_tcp_poll () from /opt/intel/psxe_runtime_2017.4.196/linux/mpi/intel64/lib/libmpi.so.12

#3  0x00002acb4b350020 in MPID_nem_network_poll () from /opt/intel/psxe_runtime_2017.4.196/linux/mpi/intel64/lib/libmpi.so.12

#4  0x00002acb4b0cc5f2 in PMPIDI_CH3I_Progress () from /opt/intel/psxe_runtime_2017.4.196/linux/mpi/intel64/lib/libmpi.so.12

#5  0x00002acb4b50328f in PMPI_Waitall () from /opt/intel/psxe_runtime_2017.4.196/linux/mpi/intel64/lib/libmpi.so.12

#6  0x00002acb4ad1d53f in pmpi_waitall_ (v1=0x1e, v2=0xb0c320, v3=0x0, ierr=0x2acb4c6bf733 <__select_nocancel+10>) at ../../src/binding/fortran/mpif_h/waitallf.c:275

#7  0x00000000004064b0 in MAIN__ ()

#8  0x000000000040331e in main ()

 

Output log after I kill the job:

$ mpirun -n 16 ./test.x

forrtl: error (78): process killed (SIGTERM)

Image              PC                Routine            Line        Source

test.x             000000000040C12A  Unknown               Unknown  Unknown

libpthread-2.17.s  00002BA8B42F95A0  Unknown               Unknown  Unknown

libmpi.so.12       00002BA8B3303EBF  PMPIDI_CH3I_Progr     Unknown  Unknown

libmpi.so.12       00002BA8B373B28F  PMPI_Waitall          Unknown  Unknown

libmpifort.so.12.  00002BA8B2F5553F  pmpi_waitall          Unknown  Unknown

test.x             00000000004064B0  MAIN__                    129  nbtest.f90

test.x             000000000040331E  Unknown               Unknown  Unknown

libc-2.17.so       00002BA8B4829C05  __libc_start_main     Unknown  Unknown

test.x             0000000000403229  Unknown               Unknown  Unknown

(repeated 15 times, once for each processor)

Output with I_MPI_DEBUG = 6

[0] MPI startup(): Intel(R) MPI Library, Version 2017 Update 3  Build 20170405 (id: 17193)

[0] MPI startup(): Copyright (C) 2003-2017 Intel Corporation.  All rights reserved.

[0] MPI startup(): Multi-threaded optimized library

[12] MPI startup(): cannot open dynamic library libdat2.so.2

[7] MPI startup(): cannot open dynamic library libdat2.so.2

[10] MPI startup(): cannot open dynamic library libdat2.so.2

[13] MPI startup(): cannot open dynamic library libdat2.so.2

[4] MPI startup(): cannot open dynamic library libdat2.so.2

[9] MPI startup(): cannot open dynamic library libdat2.so.2

[14] MPI startup(): cannot open dynamic library libdat2.so.2

[5] MPI startup(): cannot open dynamic library libdat2.so.2

[11] MPI startup(): cannot open dynamic library libdat2.so.2

[15] MPI startup(): cannot open dynamic library libdat2.so.2

[6] MPI startup(): cannot open dynamic library libdat2.so.2

[8] MPI startup(): cannot open dynamic library libdat2.so.2

[0] MPI startup(): cannot open dynamic library libdat2.so.2

[3] MPI startup(): cannot open dynamic library libdat2.so.2

[2] MPI startup(): cannot open dynamic library libdat2.so.2

[4] MPI startup(): cannot open dynamic library libdat2.so

[7] MPI startup(): cannot open dynamic library libdat2.so

[8] MPI startup(): cannot open dynamic library libdat2.so

[9] MPI startup(): cannot open dynamic library libdat2.so

[6] MPI startup(): cannot open dynamic library libdat2.so

[10] MPI startup(): cannot open dynamic library libdat2.so

[13] MPI startup(): cannot open dynamic library libdat2.so

[0] MPI startup(): cannot open dynamic library libdat2.so

[15] MPI startup(): cannot open dynamic library libdat2.so

[3] MPI startup(): cannot open dynamic library libdat2.so

[12] MPI startup(): cannot open dynamic library libdat2.so

[4] MPI startup(): cannot open dynamic library libdat.so.1

[14] MPI startup(): cannot open dynamic library libdat2.so

[7] MPI startup(): cannot open dynamic library libdat.so.1

[5] MPI startup(): cannot open dynamic library libdat2.so

[8] MPI startup(): cannot open dynamic library libdat.so.1

[1] MPI startup(): cannot open dynamic library libdat2.so.2

[6] MPI startup(): cannot open dynamic library libdat.so.1

[9] MPI startup(): cannot open dynamic library libdat.so.1

[10] MPI startup(): cannot open dynamic library libdat.so.1

[0] MPI startup(): cannot open dynamic library libdat.so.1

[12] MPI startup(): cannot open dynamic library libdat.so.1

[4] MPI startup(): cannot open dynamic library libdat.so

[11] MPI startup(): cannot open dynamic library libdat2.so

[3] MPI startup(): cannot open dynamic library libdat.so.1

[13] MPI startup(): cannot open dynamic library libdat.so.1

[5] MPI startup(): cannot open dynamic library libdat.so.1

[15] MPI startup(): cannot open dynamic library libdat.so.1

[5] MPI startup(): cannot open dynamic library libdat.so

[7] MPI startup(): cannot open dynamic library libdat.so

[1] MPI startup(): cannot open dynamic library libdat2.so

[9] MPI startup(): cannot open dynamic library libdat.so

[8] MPI startup(): cannot open dynamic library libdat.so

[11] MPI startup(): cannot open dynamic library libdat.so.1

[6] MPI startup(): cannot open dynamic library libdat.so

[10] MPI startup(): cannot open dynamic library libdat.so

[14] MPI startup(): cannot open dynamic library libdat.so.1

[11] MPI startup(): cannot open dynamic library libdat.so

[13] MPI startup(): cannot open dynamic library libdat.so

[15] MPI startup(): cannot open dynamic library libdat.so

[12] MPI startup(): cannot open dynamic library libdat.so

[0] MPI startup(): cannot open dynamic library libdat.so

[14] MPI startup(): cannot open dynamic library libdat.so

[1] MPI startup(): cannot open dynamic library libdat.so.1

[3] MPI startup(): cannot open dynamic library libdat.so

[1] MPI startup(): cannot open dynamic library libdat.so

[2] MPI startup(): cannot open dynamic library libdat2.so

[2] MPI startup(): cannot open dynamic library libdat.so.1

[2] MPI startup(): cannot open dynamic library libdat.so

[4] MPI startup(): cannot load default tmi provider

[7] MPI startup(): cannot load default tmi provider

[5] MPI startup(): cannot load default tmi provider

[9] MPI startup(): cannot load default tmi provider

[0] MPI startup(): cannot load default tmi provider

[6] MPI startup(): cannot load default tmi provider

[10] MPI startup(): cannot load default tmi provider

[3] MPI startup(): cannot load default tmi provider

[15] MPI startup(): cannot load default tmi provider

[8] MPI startup(): cannot load default tmi provider

[1] MPI startup(): cannot load default tmi provider

[14] MPI startup(): cannot load default tmi provider

[11] MPI startup(): cannot load default tmi provider

[2] MPI startup(): cannot load default tmi provider

[12] MPI startup(): cannot load default tmi provider

[13] MPI startup(): cannot load default tmi provider

[12] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[4] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

[9] ERROR - load_iblibrary(): [15] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[5] ERROR - load_iblibrary(): [0] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[10] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

[1] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

 

[3] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[13] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[7] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[2] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[6] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[8] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[11] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[14] ERROR - load_iblibrary(): Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

Can't open IB verbs library: libibverbs.so.1: cannot open shared object file: No such file or directory

 

[0] MPI startup(): shm and tcp data transfer modes

[1] MPI startup(): shm and tcp data transfer modes

[2] MPI startup(): shm and tcp data transfer modes

[3] MPI startup(): shm and tcp data transfer modes

[4] MPI startup(): shm and tcp data transfer modes

[5] MPI startup(): shm and tcp data transfer modes

[7] MPI startup(): shm and tcp data transfer modes

[9] MPI startup(): shm and tcp data transfer modes

[8] MPI startup(): shm and tcp data transfer modes

[6] MPI startup(): shm and tcp data transfer modes

[10] MPI startup(): shm and tcp data transfer modes

[11] MPI startup(): shm and tcp data transfer modes

[12] MPI startup(): shm and tcp data transfer modes

[13] MPI startup(): shm and tcp data transfer modes

[14] MPI startup(): shm and tcp data transfer modes

[15] MPI startup(): shm and tcp data transfer modes

[0] MPI startup(): Device_reset_idx=1

[0] MPI startup(): Allgather: 4: 1-4 & 0-4

[0] MPI startup(): Allgather: 1: 5-11 & 0-4

[0] MPI startup(): Allgather: 4: 12-28 & 0-4

[0] MPI startup(): Allgather: 1: 29-1694 & 0-4

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #000000; background-color: #ffffff}
span.s1 {font-variant-ligatures: no-common-ligatures}

[0] MPI startup(): Allgather: 4: 1695-3413 & 0-4

[0] MPI startup(): Allgather: 1: 3414-513494 & 0-4

[0] MPI startup(): Allgather: 3: 513495-1244544 & 0-4

[0] MPI startup(): Allgather: 4: 0-2147483647 & 0-4

[0] MPI startup(): Allgather: 4: 1-16 & 5-16

[0] MPI startup(): Allgather: 1: 17-38 & 5-16

[0] MPI startup(): Allgather: 3: 0-2147483647 & 5-16

[0] MPI startup(): Allgather: 4: 1-8 & 17-2147483647

[0] MPI startup(): Allgather: 1: 9-23 & 17-2147483647

[0] MPI startup(): Allgather: 4: 24-35 & 17-2147483647

[0] MPI startup(): Allgather: 3: 0-2147483647 & 17-2147483647

[0] MPI startup(): Allgatherv: 1: 0-3669 & 0-4

[0] MPI startup(): Allgatherv: 4: 3669-4949 & 0-4

[0] MPI startup(): Allgatherv: 1: 4949-17255 & 0-4

[0] MPI startup(): Allgatherv: 4: 17255-46775 & 0-4

[0] MPI startup(): Allgatherv: 3: 46775-836844 & 0-4

[0] MPI startup(): Allgatherv: 4: 0-2147483647 & 0-4

[0] MPI startup(): Allgatherv: 4: 0-10 & 5-16

[0] MPI startup(): Allgatherv: 1: 10-38 & 5-16

[0] MPI startup(): Allgatherv: 3: 0-2147483647 & 5-16

[0] MPI startup(): Allgatherv: 4: 0-8 & 17-2147483647

[0] MPI startup(): Allgatherv: 1: 8-21 & 17-2147483647

[0] MPI startup(): Allgatherv: 3: 0-2147483647 & 17-2147483647

[0] MPI startup(): Allreduce: 5: 0-6 & 0-8

[0] MPI startup(): Allreduce: 7: 6-11 & 0-8

[0] MPI startup(): Allreduce: 5: 11-26 & 0-8

[0] MPI startup(): Allreduce: 4: 26-43 & 0-8

[0] MPI startup(): Allreduce: 5: 43-99 & 0-8

[0] MPI startup(): Allreduce: 1: 99-176 & 0-8

[0] MPI startup(): Allreduce: 6: 176-380 & 0-8

[0] MPI startup(): Allreduce: 2: 380-2967 & 0-8

[0] MPI startup(): Allreduce: 1: 2967-9460 & 0-8

[0] MPI startup(): Allreduce: 2: 0-2147483647 & 0-8

[0] MPI startup(): Allreduce: 5: 0-95 & 9-16

[0] MPI startup(): Allreduce: 1: 95-301 & 9-16

[0] MPI startup(): Allreduce: 2: 301-2577 & 9-16

[0] MPI startup(): Allreduce: 6: 2577-5427 & 9-16

[0] MPI startup(): Allreduce: 1: 5427-10288 & 9-16

[0] MPI startup(): Allreduce: 2: 0-2147483647 & 9-16

[0] MPI startup(): Allreduce: 6: 0-6 & 17-2147483647

[0] MPI startup(): Allreduce: 5: 6-11 & 17-2147483647

[0] MPI startup(): Allreduce: 6: 11-452 & 17-2147483647

[0] MPI startup(): Allreduce: 2: 452-2639 & 17-2147483647

[0] MPI startup(): Allreduce: 6: 2639-5627 & 17-2147483647

[0] MPI startup(): Allreduce: 1: 5627-9956 & 17-2147483647

[0] MPI startup(): Allreduce: 2: 9956-2587177 & 17-2147483647

[0] MPI startup(): Allreduce: 3: 0-2147483647 & 17-2147483647

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #000000; background-color: #ffffff}
span.s1 {font-variant-ligatures: no-common-ligatures}

[0] MPI startup(): Alltoall: 4: 1-16 & 0-8

[0] MPI startup(): Alltoall: 1: 17-69 & 0-8

[0] MPI startup(): Alltoall: 2: 70-1024 & 0-8

[0] MPI startup(): Alltoall: 2: 1024-52228 & 0-8

[0] MPI startup(): Alltoall: 4: 52229-74973 & 0-8

[0] MPI startup(): Alltoall: 2: 74974-131148 & 0-8

[0] MPI startup(): Alltoall: 3: 131149-335487 & 0-8

[0] MPI startup(): Alltoall: 4: 0-2147483647 & 0-8

[0] MPI startup(): Alltoall: 4: 1-16 & 9-16

[0] MPI startup(): Alltoall: 1: 17-40 & 9-16

[0] MPI startup(): Alltoall: 2: 41-497 & 9-16

[0] MPI startup(): Alltoall: 1: 498-547 & 9-16

[0] MPI startup(): Alltoall: 2: 548-1024 & 9-16

[0] MPI startup(): Alltoall: 2: 1024-69348 & 9-16

[0] MPI startup(): Alltoall: 4: 0-2147483647 & 9-16

[0] MPI startup(): Alltoall: 4: 0-1 & 17-2147483647

[0] MPI startup(): Alltoall: 1: 2-4 & 17-2147483647

[0] MPI startup(): Alltoall: 4: 5-24 & 17-2147483647

[0] MPI startup(): Alltoall: 2: 25-1024 & 17-2147483647

[0] MPI startup(): Alltoall: 2: 1024-20700 & 17-2147483647

[0] MPI startup(): Alltoall: 4: 20701-57414 & 17-2147483647

[0] MPI startup(): Alltoall: 3: 57415-66078 & 17-2147483647

[0] MPI startup(): Alltoall: 4: 0-2147483647 & 17-2147483647

[0] MPI startup(): Alltoallv: 2: 0-2147483647 & 0-2147483647

[0] MPI startup(): Alltoallw: 0: 0-2147483647 & 0-2147483647

[0] MPI startup(): Barrier: 0: 0-2147483647 & 0-2147483647

[0] MPI startup(): Bcast: 4: 1-29 & 0-8

[0] MPI startup(): Bcast: 7: 30-37 & 0-8

[0] MPI startup(): Bcast: 4: 38-543 & 0-8

[0] MPI startup(): Bcast: 6: 544-1682 & 0-8

[0] MPI startup(): Bcast: 4: 1683-2521 & 0-8

[0] MPI startup(): Bcast: 6: 2522-30075 & 0-8

[0] MPI startup(): Bcast: 7: 30076-34889 & 0-8

[0] MPI startup(): Bcast: 4: 34890-131072 & 0-8

[0] MPI startup(): Bcast: 6: 131072-409051 & 0-8

[0] MPI startup(): Bcast: 7: 0-2147483647 & 0-8

[0] MPI startup(): Bcast: 4: 1-13 & 9-2147483647

[0] MPI startup(): Bcast: 1: 14-25 & 9-2147483647

[0] MPI startup(): Bcast: 4: 26-691 & 9-2147483647

[0] MPI startup(): Bcast: 6: 692-2367 & 9-2147483647

[0] MPI startup(): Bcast: 4: 2368-7952 & 9-2147483647

[0] MPI startup(): Bcast: 6: 7953-10407 & 9-2147483647

[0] MPI startup(): Bcast: 4: 10408-17900 & 9-2147483647

[0] MPI startup(): Bcast: 6: 17901-36385 & 9-2147483647

[0] MPI startup(): Bcast: 7: 36386-131072 & 9-2147483647

[0] MPI startup(): Bcast: 7: 0-2147483647 & 9-2147483647

[0] MPI startup(): Exscan: 0: 0-2147483647 & 0-2147483647

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #000000; background-color: #ffffff}
span.s1 {font-variant-ligatures: no-common-ligatures}

[0] MPI startup(): Gather: 2: 1-3 & 0-8

[0] MPI startup(): Gather: 3: 4-4 & 0-8

[0] MPI startup(): Gather: 2: 5-66 & 0-8

[0] MPI startup(): Gather: 3: 67-174 & 0-8

[0] MPI startup(): Gather: 2: 175-478 & 0-8

[0] MPI startup(): Gather: 3: 479-531 & 0-8

[0] MPI startup(): Gather: 2: 532-2299 & 0-8

[0] MPI startup(): Gather: 3: 0-2147483647 & 0-8

[0] MPI startup(): Gather: 2: 1-141 & 9-16

[0] MPI startup(): Gather: 3: 142-456 & 9-16

[0] MPI startup(): Gather: 2: 457-785 & 9-16

[0] MPI startup(): Gather: 3: 786-70794 & 9-16

[0] MPI startup(): Gather: 2: 70795-254351 & 9-16

[0] MPI startup(): Gather: 3: 0-2147483647 & 9-16

[0] MPI startup(): Gather: 2: 1-89 & 17-2147483647

[0] MPI startup(): Gather: 3: 90-472 & 17-2147483647

[0] MPI startup(): Gather: 2: 473-718 & 17-2147483647

[0] MPI startup(): Gather: 3: 719-16460 & 17-2147483647

[0] MPI startup(): Gather: 2: 0-2147483647 & 17-2147483647

[0] MPI startup(): Gatherv: 2: 0-2147483647 & 0-16

[0] MPI startup(): Gatherv: 2: 0-2147483647 & 17-2147483647

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[0] MPI startup(): Reduce_scatter: 5: 0-5 & 0-4

[0] MPI startup(): Reduce_scatter: 1: 5-192 & 0-4

[0] MPI startup(): Reduce_scatter: 3: 192-349 & 0-4

[0] MPI startup(): Reduce_scatter: 1: 349-3268 & 0-4

[0] MPI startup(): Reduce_scatter: 3: 3268-71356 & 0-4

[0] MPI startup(): Reduce_scatter: 2: 71356-513868 & 0-4

[0] MPI startup(): Reduce_scatter: 5: 513868-731452 & 0-4

[0] MPI startup(): Reduce_scatter: 2: 731452-1746615 & 0-4

[0] MPI startup(): Reduce_scatter: 5: 1746615-2485015 & 0-4

[0] MPI startup(): Reduce_scatter: 2: 0-2147483647 & 0-4

[0] MPI startup(): Reduce_scatter: 5: 0-5 & 5-16

[0] MPI startup(): Reduce_scatter: 1: 5-59 & 5-16

[0] MPI startup(): Reduce_scatter: 5: 59-99 & 5-16

[0] MPI startup(): Reduce_scatter: 3: 99-198 & 5-16

[0] MPI startup(): Reduce_scatter: 1: 198-360 & 5-16

[0] MPI startup(): Reduce_scatter: 3: 360-3606 & 5-16

[0] MPI startup(): Reduce_scatter: 2: 3606-4631 & 5-16

[0] MPI startup(): Reduce_scatter: 3: 0-2147483647 & 5-16

[0] MPI startup(): Reduce_scatter: 5: 0-22 & 17-2147483647

[0] MPI startup(): Reduce_scatter: 1: 22-44 & 17-2147483647

[0] MPI startup(): Reduce_scatter: 5: 44-278 & 17-2147483647

[0] MPI startup(): Reduce_scatter: 3: 278-3517 & 17-2147483647

[0] MPI startup(): Reduce_scatter: 5: 3517-4408 & 17-2147483647

[0] MPI startup(): Reduce_scatter: 3: 0-2147483647 & 17-2147483647

[0] MPI startup(): Reduce: 4: 4-5 & 0-4

[0] MPI startup(): Reduce: 1: 6-59 & 0-4

[0] MPI startup(): Reduce: 2: 60-188 & 0-4

[0] MPI startup(): Reduce: 6: 189-362 & 0-4

[0] MPI startup(): Reduce: 2: 363-7776 & 0-4

[0] MPI startup(): Reduce: 5: 7777-151371 & 0-4

[0] MPI startup(): Reduce: 1: 0-2147483647 & 0-4

[0] MPI startup(): Reduce: 4: 4-60 & 5-16

[0] MPI startup(): Reduce: 3: 61-88 & 5-16

[0] MPI startup(): Reduce: 4: 89-245 & 5-16

[0] MPI startup(): Reduce: 3: 246-256 & 5-16

[0] MPI startup(): Reduce: 4: 257-8192 & 5-16

[0] MPI startup(): Reduce: 3: 8192-1048576 & 5-16

[0] MPI startup(): Reduce: 3: 0-2147483647 & 5-16

[0] MPI startup(): Reduce: 4: 4-8192 & 17-2147483647

[0] MPI startup(): Reduce: 3: 8192-1048576 & 17-2147483647

[0] MPI startup(): Reduce: 3: 0-2147483647 & 17-2147483647

[0] MPI startup(): Scan: 0: 0-2147483647 & 0-2147483647

[0] MPI startup(): Scatter: 2: 1-7 & 0-16

[0] MPI startup(): Scatter: 3: 8-9 & 0-16

[0] MPI startup(): Scatter: 2: 10-64 & 0-16

[0] MPI startup(): Scatter: 3: 65-372 & 0-16

[0] MPI startup(): Scatter: 2: 373-811 & 0-16

[0] MPI startup(): Scatter: 3: 812-115993 & 0-16

[0] MPI startup(): Scatter: 2: 115994-173348 & 0-16

[0] MPI startup(): Scatter: 3: 0-2147483647 & 0-16

[0] MPI startup(): Scatter: 1: 1-1 & 17-2147483647

[0] MPI startup(): Scatter: 2: 2-76 & 17-2147483647

[0] MPI startup(): Scatter: 3: 77-435 & 17-2147483647

[0] MPI startup(): Scatter: 2: 436-608 & 17-2147483647

[0] MPI startup(): Scatter: 3: 0-2147483647 & 17-2147483647

[0] MPI startup(): Scatterv: 1: 0-2147483647 & 0-2147483647

[5] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[1] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[7] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[2] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[6] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[3] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[13] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[4] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[9] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[14] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[11] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[15] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[8] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[12] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[10] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[0] MPI startup(): Rank    Pid      Node name      Pin cpu

[0] MPI startup(): 0       10691    ip-10-0-0-189  0

[0] MPI startup(): 1       10692    ip-10-0-0-189  1

[0] MPI startup(): 2       10693    ip-10-0-0-189  2

[0] MPI startup(): 3       10694    ip-10-0-0-189  3

[0] MPI startup(): 4       10320    ip-10-0-0-174  0

[0] MPI startup(): 5       10321    ip-10-0-0-174  1

[0] MPI startup(): 6       10322    ip-10-0-0-174  2

[0] MPI startup(): 7       10323    ip-10-0-0-174  3

[0] MPI startup(): 8       10273    ip-10-0-0-104  0

[0] MPI startup(): 9       10274    ip-10-0-0-104  1

[0] MPI startup(): 10      10275    ip-10-0-0-104  2

[0] MPI startup(): 11      10276    ip-10-0-0-104  3

[0] MPI startup(): 12      10312    ip-10-0-0-158  0

[0] MPI startup(): 13      10313    ip-10-0-0-158  1

[0] MPI startup(): 14      10314    ip-10-0-0-158  2

[0] MPI startup(): 15      10315    ip-10-0-0-158  3

[0] MPI startup(): Recognition=2 Platform(code=32 ippn=2 dev=5) Fabric(intra=1 inter=6 flags=0x0)

[0] MPI startup(): I_MPI_DEBUG=6

[0] MPI startup(): I_MPI_HYDRA_UUID=bb290000-2b37-e5b2-065d-050000bd0a00

[0] MPI startup(): I_MPI_INFO_NUMA_NODE_NUM=1

[0] MPI startup(): I_MPI_PIN_MAPPING=4:0 0,1 1,2 2,3 3


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