https://community.intel.com/t5/Intel-MPI-Library/MPI-COMM-SPAWN-crashing/m-p/1025801#M4098 <P>Hi,</P> <P>I see that you find the MPI_COMM_SPAWN routine. You're missing the IERROR argument for the MPI_BARRIER call. It works fine with that change.</P> Thu, 04 Jun 2015 07:00:11 GMT John_D_6 2015-06-04T07:00:11Z https://community.intel.com/t5/Intel-MPI-Library/MPI-COMM-SPAWN-crashing/m-p/1025800#M4097 <P>I have two fortran mpi programs (driver.f90 and hello.f90, both attached here)&nbsp;</P> <P>driver.f90 contains a call to MPI_COMM_SPAWN which calls hello.x</P> <P>When I run it using &nbsp;the command "mpirun -np 2 ./driver.x" It crashes (output below this message). I noticed that spawned task 0 has a different parent communicator than the other tasks. I imagine that is the cause of the segmentation fault. It seems a very simple mpi program, both OpenMPI and MPICH work fine. Does anybody know what the problem might be</P> <P><SPAN style="font-size: 1em; line-height: 1.5;">I'm using&nbsp;</SPAN><SPAN style="font-size: 1em; line-height: 1.5;">impi/5.0.3.048 and ifort 15.0.3.</SPAN></P> <P>&nbsp;</P> <P><SPAN style="font-size: 1em; line-height: 1.5;">Thanks,</SPAN></P> <P>&nbsp;</P> <P>&nbsp;</P> <P>mpirun -np 2 ./driver.x&nbsp;<BR /> &nbsp;PID: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 INTERCOMM: -2080374784<BR /> &nbsp;PID: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0 INTERCOMM: -2080374784<BR /> &nbsp;<BR /> &nbsp;hello: task= &nbsp;1 parent comm= -2080374784 on host=login4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<BR /> &nbsp;hello: task= &nbsp;2 parent comm= -2080374784 on host=login4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<BR /> &nbsp;hello: task= &nbsp;0 parent comm= -2080374783 on host=login4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<BR /> &nbsp;hello: task= &nbsp;3 parent comm= -2080374784 on host=login4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<BR /> forrtl: severe (174): SIGSEGV, segmentation fault occurred<BR /> Image &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PC &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Routine &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Line &nbsp; &nbsp; &nbsp; &nbsp;Source &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0000000000474301 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0000000000472A57 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0000000000442F24 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0000000000442D36 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 00000000004277DF &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 00000000004039AD &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> libpthread.so.0 &nbsp; &nbsp;000000333580F710 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> libmpifort.so.12 &nbsp; 00007F8A0B12AA1C &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 00000000004037BB &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 000000000040354E &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> libc.so.6 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;000000333501ED5D &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 00000000004033E9 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> forrtl: severe (174): SIGSEGV, segmentation fault occurred<BR /> Image &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PC &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Routine &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Line &nbsp; &nbsp; &nbsp; &nbsp;Source &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0000000000474301 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0000000000472A57 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0000000000442F24 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0000000000442D36 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 00000000004277DF &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 00000000004039AD &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> libpthread.so.0 &nbsp; &nbsp;000000333580F710 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> libmpifort.so.12 &nbsp; 00007F5471F5FA1C &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 00000000004037BB &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 000000000040354E &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> libc.so.6 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;000000333501ED5D &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown<BR /> driver.x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 00000000004033E9 &nbsp;Unknown &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Unknown &nbsp;Unknown</P> <P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> Wed, 03 Jun 2015 22:20:04 GMT https://community.intel.com/t5/Intel-MPI-Library/MPI-COMM-SPAWN-crashing/m-p/1025800#M4097 okkebas 2015-06-03T22:20:04Z https://community.intel.com/t5/Intel-MPI-Library/MPI-COMM-SPAWN-crashing/m-p/1025801#M4098 <P>Hi,</P> <P>I see that you find the MPI_COMM_SPAWN routine. You're missing the IERROR argument for the MPI_BARRIER call. It works fine with that change.</P> Thu, 04 Jun 2015 07:00:11 GMT https://community.intel.com/t5/Intel-MPI-Library/MPI-COMM-SPAWN-crashing/m-p/1025801#M4098 John_D_6 2015-06-04T07:00:11Z