Hello there, I'm trying to do the performance analysis of my MPI cluster using Intel MPI Benchmarks. I am using mpich2-1.4.1 source code and Intel MPI Benchmarks 4.0 Version 2. But I'm encountering some errors. I setup the environmental variables in make_mpich file in the src directory. I extracted the archive and ran: make -f make_mpich Part of the output where we see errors is attached below: IMB_allreduce.o: In function `IMB_iallreduce_pure': IMB_allreduce.c:(.text+0xd6): undefined reference to `MPI_Iallreduce' IMB_allreduce.o: In function `IMB_iallreduce': IMB_allreduce.c:(.text+0x246): undefined reference to `MPI_Iallreduce' IMB_reduce_scatter.o: In function `IMB_ireduce_scatter_pure': IMB_reduce_scatter.c:(.text+0x138): undefined reference to `MPI_Ireduce_scatter' IMB_reduce_scatter.o: In function `IMB_ireduce_scatter': IMB_reduce_scatter.c:(.text+0x2b8): undefined reference to `MPI_Ireduce_scatter' IMB_reduce.o: In function `IMB_ireduce_pure': IMB_reduce.c:(.text+0xe4): undefined reference to `MPI_Ireduce' IMB_reduce.o: In function `IMB_ireduce': IMB_reduce.c:(.text+0x264): undefined reference to `MPI_Ireduce' IMB_bcast.o: In function `IMB_ibcast_pure': IMB_bcast.c:(.text+0xc4): undefined reference to `MPI_Ibcast' IMB_bcast.o: In function `IMB_ibcast': IMB_bcast.c:(.text+0x244): undefined reference to `MPI_Ibcast' IMB_barrier.o: In function `IMB_ibarrier_pure': IMB_barrier.c:(.text+0x5e): undefined reference to `MPI_Ibarrier' IMB_barrier.o: In function `IMB_ibarrier': IMB_barrier.c:(.text+0x166): undefined reference to `MPI_Ibarrier' IMB_allgather.o: In function `IMB_iallgather_pure': IMB_allgather.c:(.text+0xee): undefined reference to `MPI_Iallgather' IMB_allgather.o: In function `IMB_iallgather': IMB_allgather.c:(.text+0x2a6): undefined reference to `MPI_Iallgather' IMB_allgatherv.o: In function `IMB_iallgatherv_pure': IMB_allgatherv.c:(.text+0x12a): undefined reference to `MPI_Iallgatherv' IMB_allgatherv.o: In function `IMB_iallgatherv': IMB_allgatherv.c:(.text+0x2ea): undefined reference to `MPI_Iallgatherv' IMB_gather.o: In function `IMB_igather_pure': IMB_gather.c:(.text+0x10c): undefined reference to `MPI_Igather' IMB_gather.o: In function `IMB_igather': IMB_gather.c:(.text+0x2e4): undefined reference to `MPI_Igather' IMB_gatherv.o: In function `IMB_igatherv_pure': IMB_gatherv.c:(.text+0x138): undefined reference to `MPI_Igatherv' IMB_gatherv.o: In function `IMB_igatherv': IMB_gatherv.c:(.text+0x308): undefined reference to `MPI_Igatherv' IMB_scatter.o: In function `IMB_iscatter_pure': IMB_scatter.c:(.text+0x10c): undefined reference to `MPI_Iscatter' IMB_scatter.o: In function `IMB_iscatter': IMB_scatter.c:(.text+0x2e4): undefined reference to `MPI_Iscatter' IMB_scatterv.o: In function `IMB_iscatterv_pure': IMB_scatterv.c:(.text+0x12d): undefined reference to `MPI_Iscatterv' IMB_scatterv.o: In function `IMB_iscatterv': IMB_scatterv.c:(.text+0x2f5): undefined reference to `MPI_Iscatterv' IMB_alltoall.o: In function `IMB_ialltoall_pure': IMB_alltoall.c:(.text+0xee): undefined reference to `MPI_Ialltoall' IMB_alltoall.o: In function `IMB_ialltoall': IMB_alltoall.c:(.text+0x2a6): undefined reference to `MPI_Ialltoall' IMB_alltoallv.o: In function `IMB_ialltoallv_pure': IMB_alltoallv.c:(.text+0x19b): undefined reference to `MPI_Ialltoallv' IMB_alltoallv.o: In function `IMB_ialltoallv': IMB_alltoallv.c:(.text+0x363): undefined reference to `MPI_Ialltoallv' collect2: ld returned 1 exit status make[1]: *** [NBC] Error 1 make[1]: Leaving directory `/work/imb/src' make: *** [IMB-NBC] Error 2 Is there some step which I might have overlooked? I need to check the performance for mpich2-1.4.1 only. Please help. Regards, Vaibhav Rekhate _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss