Hi Vaibhav, The error is caused by missing nonblocking collective functions in mpich2-1.4.1. You are using an very old version of MPICH (2011) with a recent Intel MPI benchmark (2013). As far as I know, MPICH started to support nonblocking collectives since mpich-3.0. Right now our latest stable release is mpich-3.1.4. You can download it from here. https://www.mpich.org/downloads/ Best regards, -- Huiwei On Wed, Apr 1, 2015 at 7:27 AM, Vaibhav Rekhate <[email protected]

wrote:

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

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