Doc: Use ++n instead of +p in charmrun examples

charmplusplus / charm

The Charm++ parallel programming system. Visit https://charmplusplus.org/ for more information.

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Open hizv opened 4 months ago

hizv commented 4 months ago

Resolves #2947.

Keeps +p in some examples (e.g. ./hello) to show that it's fine to use +p for testing.
Adds an example to illustrate how +p relates to ++n in the SMP options section.

hizv commented 4 months ago

Should AMPI examples retain +p? The introduction section of AMPI uses P=4 in a diagram, so it might be easier to relate the +p option to that.