[mvapich-discuss] OpenFabrics

Kevin Ball kball at pathscale.com
Wed Aug 30 15:01:06 EDT 2006


Hi Sayantan,

  Thank you for your prompt response.  Some initial results below:

> >
> Yes, we did find some fixes for this issue:
> 
> 1. In your compilation script the flag "-fno-strict-aliasing" is required.
> 
> 2. You need to apply this patch for getting rid of the "unaligned 
> access" warnings.
> 
> Could you please let us know the outcome of your testing? We will then 
> check in these things into our trunk.

  These fixes did allow me to get osu_latency running.  Thank you! 
However, when I try to run osu_bw I run into the following problem:

[root at hwlab-dhcp-234 OSU]# mpirun_rsh -ssh -np 2 hwlab-dhcp-234
hwlab-dhcp-228 ./osu_bw
# OSU MPI Bandwidth Test (Version 2.0)
# Size          Bandwidth (MByte/s)
1               0.490421
2               1.005578
4               1.997191
8               4.023892
16              8.015656
32              15.877200
64              30.866616
128             58.939492
256             117.557581
512             218.803419
1024            352.060167
2048            530.935310
4096            743.670922
8192            708.698414
16384           820.738885
32768           891.343081
65536           927.707331
131072          947.961714
262144          957.636449
524288          962.952933
1048576         965.444445
2097152         966.749701
0 - MPI_ISEND : Cannot free permanent data type
[0] [] Aborting Program!
mpirun_rsh: Abort signaled from [0]
1 - MPI_IRECV : Cannot free permanent data type
[1] [] Aborting Program!
done.


Any ideas?  Thanks!

-Kevin

> 
> Thanks,
> Sayantan.



More information about the mvapich-discuss mailing list