Re: [OMPI users] Concerning the performance of the one-sided communications

2018-02-16 Thread Nathan Hjelm
How was the latency? That is the best metric to use because osc/pt2pt does put aggregation. Makes the result of osu_put_bw relatively garbage. > On Feb 16, 2018, at 5:24 PM, Jeff Hammond wrote: > > > >> On Fri, Feb 16, 2018 at 8:52 AM, Nathan Hjelm wrote: >> It depends on the transport used

Re: [OMPI users] Concerning the performance of the one-sided communications

2018-02-16 Thread Jeff Hammond
On Fri, Feb 16, 2018 at 8:52 AM, Nathan Hjelm wrote: > It depends on the transport used. If there is a high-performance network > (Cray Aries, Infiniband, etc) then the progress is handled by the hardware. > For other networks (Infinipath, Omnipath, TCP, etc) there are options. > > For TCP you ca

Re: [OMPI users] Concerning the performance of the one-sided communications

2018-02-16 Thread Nathan Hjelm
It depends on the transport used. If there is a high-performance network (Cray Aries, Infiniband, etc) then the progress is handled by the hardware. For other networks (Infinipath, Omnipath, TCP, etc) there are options. For TCP you can set:  --mca btl_tcp_progress_thread 1 No such option curr