Hi, Using opemi 2.1, the following code resulted in the core dump, although only a simple error msg was expected. Any idea what is wrong? It seemed related the errhandler somewhere.
D.G. *** An error occurred in MPI_Reduce *** reported by process [3645440001,0] *** on communicator MPI_COMM_WORLD *** *MPI_ERR_COUNT: invalid count argument* *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort, *** and potentially your MPI job) ...... [1,1]<stderr>:1000151c0000-1000151e0000 rw-p 00000000 00:00 0 [1,1]<stderr>:1000151e0000-100015250000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015250000-100015270000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015270000-1000152e0000 rw-p 00000000 00:00 0 [1,1]<stderr>:1000152e0000-100015300000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015300000-100015510000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015510000-100015530000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015530000-100015740000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015740000-100015760000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015760000-100015970000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015970000-100015990000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015990000-100015ba0000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015ba0000-100015bc0000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015bc0000-100015dd0000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015dd0000-100015df0000 rw-p 00000000 00:00 0 [1,1]<stderr>:100015df0000-100016000000 rw-p 00000000 00:00 0 [1,1]<stderr>:100016000000-100016020000 rw-p 00000000 00:00 0 [1,1]<stderr>:100016020000-100016230000 rw-p 00000000 00:00 0 [1,1]<stderr>:100016230000-100016250000 rw-p 00000000 00:00 0 [1,1]<stderr>:100016250000-100016460000 rw-p 00000000 00:00 0 [1,1]<stderr>:100016460000-100016470000 rw-p 00000000 00:00 0 [1,1]<stderr>:3fffd4630000-3fffd46c0000 rw-p 00000000 00:00 0 [stack] -------------------------------------------------------------------------- #include <stdlib.h> #include <stdio.h> #include <mpi.h> int main(int argc, char** argv) { int r[1], s[1]; MPI_Init(&argc,&argv); s[0] = 1; r[0] = -1; MPI_Reduce(s,r,*-1*,MPI_INT,MPI_SUM,0,MPI_COMM_WORLD); printf("%d\n",r[0]); MPI_Finalize(); }
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