FAQ for Mellanox OFED for Linux
                         Version OFED-1.3-mlnx1 
                     Mellanox Technologies - May 2008


************* DRIVER ISSUES ****************

Q: I get the following error message. What is wrong?
   
   mlx4_core 0000:05:00.0: RUN_FW command failed, aborting.
   mlx4_core 0000:05:00.0: Failed to start FW, aborting.
   mlx4_core: probe of 0000:05:00.0 failed with error -22
 
A: The error message above indicates that the device's hardware capabilities
   do not match the firmware configuration (.ini) file parameter settings. 

************* MPI ISSUES *******************

Q: I am running Linpack HPL with a threaded version of the GotoBLAS library
   over MVAPICH1, and I get very poor performance results.

A: By default, MVAPICH is optimized for single-thread applications. To get the
   maximum performance, it enables CPU/Memory affinity mode by default. The
   CPU/Memory affinity mode may cause serious performance degradation for
   threaded applications and libraries like GotoBLAS. Therefore, when running
   threaded application, disable CPU/Memory affinity mode using the following
   parameter setting:

   VIADEV_USE_AFFINITY=0