Hi,

While trying to build MPICH 3.1rc1 with KNEM, I had the following error:

src/mpid/ch3/channels/nemesis/src/mpid_nem_lmt_dma.c(358): error: identifier "MPIR_CVAR_NEM_LMT_DMA_THRESHOLD" is undefined

      nodma = !knem_has_dma || data_sz < MPIR_CVAR_NEM_LMT_DMA_THRESHOLD;

compilation aborted for src/mpid/ch3/channels/nemesis/src/mpid_nem_lmt_dma.c (code 2)

I am guessing that the issue is coming from the name of the variable "MPIR_CVAR_NEM_LMT_DMA_THRESHOLD". Looking at the code, I saw that the name of this variable should be: "MPIR_CVAR_NEMESIS_LMT_DMA_THRESHOLD".

I did this change in my code and the build was ok.

Thanks,

Jerome

--
Jerome Vienne, Ph.D
HPC Software Tools Group
Texas Advanced Computing Center (TACC)
viennej@tacc.utexas.edu  | Phone: (512) 475-9322
Office: ROC 1.455B          | Fax:     (512) 475-9445

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