On Jun 3, 2010, at 8:54 AM, guillaume ranquet wrote: > granquet@bordeplage-15 ~ $ mpirun --mca btl mx,openib,sm,self --mca pml > ^cm --mca mpi_leave_pinned 0 ~/bwlat/mpi_helloworld > [bordeplage-15.bordeaux.grid5000.fr:02707] Error in mx_init (error No MX > device entry in /dev.) > Hello world from process 0 of 1 > > it works :)
Jeff, you may want to change this message to opal_output_verbose(). It is in $OMPI/ompi/mca/common/common_mx.c. >> Ok. I think that OMPI is trying to open the MX MTL first. It fails at >> mx_init() (the first error message) but it had already created some >> mpool resources. It then tries to open the MX BTL and it skips the MX >> initialization and returns SUCCESS. The MX BTL then tries to call >> mx_get_info() which fails and prints the second message. >> >> Try the attached patch. It tries to clean up if mx_init() fails and >> does not return SUCCESS on subsequent attempts to initialize MX. >> >> Scott > > I tried your patch and it seems to correct the issue: > > configured with: --prefix=$HOME/openmpi-1.4.2-nomx-bin/ > - --with-openib=/usr --with-mx=/usr > > $ ~/openmpi-1.4.2-nomx-bin/bin/mpirun ~/bwlat/mpi_helloworld > [bordeplage-15.bordeaux.grid5000.fr:22406] Error in mx_init (error No MX > device entry in /dev.) > Hello world from process 0 of 1 Excellent. > don't hesitate if you need further testing :) Thanks for all your assistance! > do you plan on applying this patch on next release? (1.4.3?) Jeff, I leave this up to you and George. Scott
