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 project as part
>
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, othe
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,
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,
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 California
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 (now
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, an
