Re: [OMPI users] tcp of openmpi-1.7.3 under our environment is very slow

Hi Jeff, I did with processor binding enabled using both of openmpi-1.7.3 and 1.7.4rc1. But I got the same results as no binding. In addition, core mapping of 1.7.4rc1 seems to be strange, which has no relation with tcp slowdown. Regards, Tetsuya Mishima [mishima@node08 OMB-3.1.1]$ mpirun -V

Re: [OMPI users] tcp of openmpi-1.7.3 under our environment is very slow

Can you re-run these tests with processor binding enabled? On Dec 16, 2013, at 6:36 PM, tmish...@jcity.maeda.co.jp wrote: > > > Hi, > > I usually use infiniband network, where openmpi-1.7.3 and 1.6.5 works fine. > > The other days, I had a chance to use tcp network(1GbE) and I noticed that >

[OMPI users] tcp of openmpi-1.7.3 under our environment is very slow

Hi, I usually use infiniband network, where openmpi-1.7.3 and 1.6.5 works fine. The other days, I had a chance to use tcp network(1GbE) and I noticed that my application with openmpi-1.7.3 was quite slower than openmpi-1.6.5. So, I did OSU MPI Bandwidth Test v3.1.1 as shown below, which shows b