Hi, the code that I gave you had more stuff in it that I didn't want to distract you. here is the simpler send/recv test that I just ran and it failed. which mpirun: specific directory that I install my MPIs /nethome/students/ahassani/usr/mpi/bin/mpirun mpirun with no argument: $ mpirun [mpiexec@oakmnt-0-a] set_default_values (../../../../src/pm/hydra/ui/mpich/utils.c:1528): no executable provided [mpiexec@oakmnt-0-a] HYD_uii_mpx_get_parameters (../../../../src/pm/hydra/ui/mpich/utils.c:1739): setting default values failed [mpiexec@oakmnt-0-a] main (../../../../src/pm/hydra/ui/mpich/mpiexec.c:153): error parsing parameters #include <mpi.h> #include <stdio.h> #include <malloc.h> #include <unistd.h> #include <stdlib.h> int skip = 10; int iter = 30; int main(int argc, char** argv) { int rank, size; int i, j, k; double t1, t2; int rc; MPI_Init(&argc, &argv); MPI_Comm world = MPI_COMM_WORLD, newworld, newworld2; MPI_Comm_rank(world, &rank); MPI_Comm_size(world, &size); int a = 0, b = 1; if(rank == 0){ MPI_Send(&a, 1, MPI_INT, 1, 0, world); }else{ MPI_Recv(&b, 1, MPI_INT, 0, 0, world, MPI_STATUS_IGNORE); } printf("b is %d\n", b); MPI_Finalize(); return 0; } Thank you. Amin Hassani, CIS department at UAB, Birmingham, AL, USA. On Tue, Nov 25, 2014 at 10:20 PM, Lu, Huiwei <[email protected]> wrote:
Hi, Amin,
Could you quickly give us the output of the following command: "which mpirun"
Also, your simplest code couldn’t compile correctly: "error: ‘t_avg’ undeclared (first use in this function)”. Can you fix it?
— Huiwei
On Nov 25, 2014, at 2:58 PM, Amin Hassani <[email protected]> wrote:
This is the simplest code I have that doesn't run.
#include <mpi.h> #include <stdio.h> #include <malloc.h> #include <unistd.h> #include <stdlib.h>
int main(int argc, char** argv) { int rank, size; int i, j, k; double t1, t2; int rc;
MPI_Init(&argc, &argv); MPI_Comm world = MPI_COMM_WORLD, newworld, newworld2; MPI_Comm_rank(world, &rank); MPI_Comm_size(world, &size);
t2 = 1; MPI_Allreduce(&t2, &t_avg, 1, MPI_DOUBLE, MPI_SUM, world); t_avg = t_avg / size;
MPI_Finalize();
return 0; }
Amin Hassani, CIS department at UAB, Birmingham, AL, USA.
On Tue, Nov 25, 2014 at 2:46 PM, "Antonio J. Peña" <[email protected]> wrote:
Hi Amin,
Can you share with us a minimal piece of code with which you can reproduce this issue?
Thanks, Antonio
On 11/25/2014 12:52 PM, Amin Hassani wrote:
Hi,
I am having problem running MPICH, on multiple nodes. When I run an multiple MPI processes on one node, it totally works, but when I try to run on multiple nodes, it fails with the error below. My machines have Debian OS, Both infiniband and TCP interconnects. I'm guessing it has something do to with the TCP network, but I can run openmpi on these machines with no problem. But for some reason I cannot run MPICH on multiple nodes. Please let me know if more info is needed from my side. I'm guessing there are some configuration that I am missing. I used MPICH 3.1.3 for this test. I googled this problem but couldn't find any solution.
In my MPI program, I am doing a simple allreduce over MPI_COMM_WORLD.
my host file (hosts-hydra) is something like this: oakmnt-0-a:1 oakmnt-0-b:1
I get this error:
$ mpirun -hostfile hosts-hydra -np 2 test_dup Assertion failed in file ../src/mpi/coll/helper_fns.c at line 490: status->MPI_TAG == recvtag Assertion failed in file ../src/mpi/coll/helper_fns.c at line 490: status->MPI_TAG == recvtag internal ABORT - process 1 internal ABORT - process 0
===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES = PID 30744 RUNNING AT oakmnt-0-b = EXIT CODE: 1 = CLEANING UP REMAINING PROCESSES = YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
===================================================================================
[mpiexec@vulcan13] HYDU_sock_read (../../../../src/pm/hydra/utils/sock/sock.c:239): read error (Bad file descriptor) [mpiexec@vulcan13] control_cb (../../../../src/pm/hydra/pm/pmiserv/pmiserv_cb.c:199): unable to read command from proxy [mpiexec@vulcan13] HYDT_dmxu_poll_wait_for_event (../../../../src/pm/hydra/tools/demux/demux_poll.c:76): callback returned error status [mpiexec@vulcan13] HYD_pmci_wait_for_completion (../../../../src/pm/hydra/pm/pmiserv/pmiserv_pmci.c:198): error waiting for event [mpiexec@vulcan13] main (../../../../src/pm/hydra/ui/mpich/mpiexec.c:344): process manager error waiting for completion
Thanks. Amin Hassani, CIS department at UAB, Birmingham, AL, USA.
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