[Beowulf] MVAPICH2 and osu_latency
Many of your questions may have already been answered in earlier discussions or in the FAQ. The search results page will indicate current discussions as well as past list serves, articles, and papers.
Jan Heichler jan.heichler at gmx.netThu Jun 12 14:27:56 PDT 2008
- Previous message: [Beowulf] Roadrunner picture
- Next message: [Beowulf] MVAPICH2 and osu_latency
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Dear all! I found this http://mvapich.cse.ohio-state.edu/performance/mvapich2/opteron/MVAPICH2-opteron-gen2-DDR.shtml as reference value for MPI-latency of Infiniband. I try to reproduce those numbers at the moment but i'm stuck with # OSU MPI Latency Test v3.0 # Size Latency (us) 0 3.07 1 3.17 2 3.16 4 3.15 8 3.19 Equipment is two quadsocket Opteron Blades (Supermicro) with Mellanox Ex DDR cards. Single 24 port switch connects them. Can anybody help with suggestions what i can do to lower the latency? Regards, Jan -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.scyld.com/pipermail/beowulf/attachments/20080612/999953c2/attachment.html
- Previous message: [Beowulf] Roadrunner picture
- Next message: [Beowulf] MVAPICH2 and osu_latency
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
More information about the Beowulf mailing list