ELPH WF COMM OPT: Difference between revisions
(Created page with "{{DISPLAYTITLE:ELPH_WF_COMM_OPT}} {{TAGDEF|ELPH_WF_COMM_OPT|[integer]| 0}} Description: Selects the MPI communication pattern used to exchange orbitals between different MPI ranks. {{Available|6.5.0}} ---- The available options are: * 0 — Use two-sided MPI communication (default) * 1 — Use one-sided MPI communication Some MPI libraries have shown instability or performance issues when using one-sided communication. If unexpected behavior occurs, it is r...") |
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==Related tags and articles== | ==Related tags and articles== | ||
{{TAG|ELPH_WF_CACHE_PREFILL}} | * {{TAG|ELPH_WF_CACHE_PREFILL}} | ||
{{TAG|ELPH_WF_REDISTRIBUTE}} | * {{TAG|ELPH_WF_REDISTRIBUTE}} | ||
<!--[[Category:INCAR tag]][[Category:Electron-phonon_interactions]]--> | <!--[[Category:INCAR tag]][[Category:Electron-phonon_interactions]]--> | ||
Revision as of 14:09, 16 October 2025
ELPH_WF_COMM_OPT = [integer]
Default: ELPH_WF_COMM_OPT = 0
Description: Selects the MPI communication pattern used to exchange orbitals between different MPI ranks.
| Mind: Available as of VASP 6.5.0 |
The available options are:
- 0 — Use two-sided MPI communication (default)
- 1 — Use one-sided MPI communication
Some MPI libraries have shown instability or performance issues when using one-sided communication.
If unexpected behavior occurs, it is recommended to keep the default setting ELPH_WF_COMM_OPT = 0.