Charm++ parallel programming system

[Ronak Buch <rabuch2 AT illinois.edu>]

Hi Malcolm,

We do have a facility to use parallel I/O in Charm++ called CkIO. Currently it only supports writing files, since that's what our main use cases were, but we can add the ability to read files in parallel, too (we were planning on doing so, it's just low priority for us right now).

To see how to use it, please look at tests/charm++/io in the Charm++ directory (you can also look at src/libs/ck-libs/io/ckio.h, which is well documented).

It would help to get some more information on what exactly you want and what your use case is, too.

Thanks,

Ronak

On Mon, Mar 12, 2018 at 7:09 PM, Malcolm Davis Steele <malcolm.dast AT gmail.com> wrote:

Hello,

My name is Malcolm Davis from Costa Rica and I'm currently working on a project that attempts to port some old MPI code to Charm++. Anyone know about a library or some workaround to do parallel I/O on the same file? Something like the https://www.mpich.org/static/docs/v3.1/www3/MPI_File_read_at.html.

Thanks in advance,

Malcolm Davis

--

Malcolm Davis Steele
Computer Engr. Student, Costa Rica Institute of Technology
HPC Research Assistant, CeNAT Costa Rica

+506 8960-6264 | www.malcolmdavis.xyz