Re: [OMPI users] hwloc, OpenMPI and unsupported OSes and toolchains

2018-03-21 Thread Ralph H Castain
I don’t see how Open MPI can operate without pthreads > On Mar 19, 2018, at 3:23 PM, Gregory (tim) Kelly wrote: > > Hello Everyone, > I'm inquiring to find someone that can answer some multi-part questions about > hwloc, OpenMPI and an alternative OS and toolchain. I have a

[OMPI users] hwloc, OpenMPI and unsupported OSes and toolchains

2018-03-21 Thread Gregory (tim) Kelly
Hello Everyone, I'm inquiring to find someone that can answer some multi-part questions about hwloc, OpenMPI and an alternative OS and toolchain. I have a project as part of my PhD work, and it's not a simple, one-part question. For brevity, I am omitting details about the OS and toolchain,

[OMPI users] hwloc, OpenMPI and unsupported OSes and toolchains

2018-03-21 Thread Gregory (tim) Kelly
Hello Everyone, I'm inquiring to find someone that can answer some multi-part questions about hwloc, OpenMPI and an alternative OS and toolchain. I have a project as part of my PhD work, and it's not a simple, one-part question. For brevity, I am omitting details about the OS and toolchain,

Re: [OMPI users] OpenMPI slow with Infiniband

2018-03-21 Thread Gilles Gouaillardet
Supun, did you configure Open MPI with --disable-dlopen ? It was previously reported that this option disable the patcher (memory registration), which impacts performance negatively. If yes, then I suggest you reconfigure (and rebuild) without this option and see if it helps Cheers,

Re: [OMPI users] Old version openmpi 1.2 support infiniband?

2018-03-21 Thread Kaiming Ouyang
Hi Jeff, Thank you for your advice. I will contact the author for some suggestions. I also notice I may port this old version library to new openmpi 3.0. I will work on this soon. Thank you. Kaiming Ouyang, Research Assistant. Department of Computer Science and Engineering University of

Re: [OMPI users] Old version openmpi 1.2 support infiniband?

2018-03-21 Thread Jeff Squyres (jsquyres)
You might want to take that library author's advice from their README: - The source code herein was used as the basis of Rountree ICS 2009. It was my first nontrivial MPI tool and was never intended to be released to the wider world. I beleive it was tied rather tightly to a subset of a

[hwloc-users] libhwloc soname change in 2.0.1rc1

2018-03-21 Thread Brice Goglin
Hello In case you missed the announce yesterday, hwloc 2.0.1rc1 changes the library soname from 12:0:0 to 15:0:0. On Linux, it means that we'll now build libhwloc.so.15 instead of libhwloc.so.12. That means any application built for hwloc 2.0.0 will need to be recompiled against 2.0.1. I should

Re: [OMPI users] Old version openmpi 1.2 support infiniband?

2018-03-21 Thread John Hearns via users
Kaiming, good luck with your project. I think you should contact Barry Rountree directly. you will probably get good advice! It is worth saying that with Turboboost there is variation between each individual CPU die, even within the same SKU. What Turboboost does is to set a thermal envelope,