Installation in SGI Altix ICE 8400 EX (2304 cores) HPC

Hi Mathan,

Before you start to try anything on this cluster, please note that ...

Yade is parallelized with OpenMP, which can be used on shared memory systems (like single workstations with N cpu cores). It will definitely not work on a distributed memory system (like the most of HPCs are)! There you should look to another DEM code, which is parallelized with MPI... I think ESys is MPI based, not sure ...
If SGI Altix ICE 8400 EX is a shared memory system, you can try to run yade on it.
Otherwise you can use yade only on one node!

cheers,

christian

Thank you Christian,

Unfortunately SGI Altix ICE 8400 EX is based on distributed memory system and chances of running YADE in our HPC is least.
I would like to discuss about the another idea, like conversion of openMPI to MPI which support distributed memory system. Please comment on this idea as well as if there is any another ways to install this ?

Regards
MathanJ Raja

2012/12/11 Mathan <email address hidden>:
> I would like to discuss about the another idea, like conversion of openMPI to MPI which support distributed memory system. Please comment on this idea as well as if there is any another ways to install this ?

I think it will be easier for you to install another DEM-software,
which is MPI-oriented.

Anton

https://launchpad.net/esys-particle

just a hint ;)

Hi Mathan,

If you need help for compilation, please report compilation errors, else we can't do much. This is independant on parallelism.

>conversion of openMPI to MPI

Maybe a misunderstanding here. Yade is not based on openMPI, it is based on openMP.
openMP to MPI is not a "conversion", it is more like writing a new parallelization from scratch.

Sticking with the current openmp implementation would let you run yade in parallel with 12 threads max (since you have 12 cores/node).

2012/12/11 Chareyre <email address hidden>:ion from scratch.
>
> Sticking with the current openmp implementation would let you run yade
> in parallel with 12 threads max (since you have 12 cores/node).

And in many cases it is enough, because more threads require more time for
"communication" and "synchronisation". You can try to use both openmp-
and mpi-based programs and choose the most suitable for you.

Cheers,

Anton

Thank you Anton, Bruno Chareyre and Christian for your useful commands. I have dropped my installation idea on the SGI Altix ICE 8400 EX(distributed memory system. Alternatively, I trying to install it on SGI Altix 4700 Compute (288 cores)
and fulfilled all the prerequisites, but presently I am stuck with compilation error.
Anton has provided some suggestions for solving that bug, but still I am facing the same problem.
Please advise me further,

https://answers.launchpad.net/yade/+question/220027

regards
MathanK Raja