[knem-devel] "unexisting region cookie" error
bighead521 at gmail.com
Mon Jul 11 21:47:51 CEST 2011
I'm trying to utilize knem in MPI.
When there is only two processes, knem was working properly.
when # of processes is 3, the code is not working properly all the time.
when # of processes goes beyond 3, there will be at least one process
that will crash without calling the finalize.
I don't know why it's not working properly for me.
Below is the information of knem module.
$ cat /dev/knem
Flags: forcing 0x0, ignoring 0x0
DMAEngine: KernelSupported Enabled NoChannelAvailable
Requests submitted : 68
Requests processed (total) : 50
processed (using DMA) : 0
processed (offloaded to thread) : 0
processed (with pinned local pages) : 0
Requests rejected (invalid flags) : 0
rejected (not enough memory) : 0
rejected (invalid ioctl argument) : 0
rejected (unexisting region cookie) : 19
rejected (failed to pin local pages): 0
Requests failed during memcpy from/to user : 0
failed during DMA copy : 0
DMA copy cleanup timeout : 0
Can anyone help me out?
Bighead actually means big stomach and huge brain,
and Bighead will definitely be a big name in the coming future.
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