Single exponent testing on MultiCore
 

Hi,

When I start mprime, it asks to start as many workers as there are cores. I want to use all cores for the same exponent. Essentially dedicating the entire server to single exponent to speed up.

I looked in readme and on this forum. All I find is mlucas. Can you guide me on this ?

G

Stop mprime,

On local.txt file, look for something like
WorkerThreads=xxx
ThreadsPerTest=yyy

replace xxx with 1, and yyy with the number of your physical cores

then look to worktodo.txt and eliminate the heders [worker xx] in case you have them from a former run, let only the [worker 1]. If no worktodo yet, no problem.

Restart mprime.

Linux users may clarify it better.

[QUOTE=LaurV;327700]Stop mprime,

On local.txt file, look for something like
WorkerThreads=xxx
ThreadsPerTest=yyy

replace xxx with 1, and yyy with the number of your physical cores

then look to worktodo.txt and eliminate the heders [worker xx] in case you have them from a former run, let only the [worker 1]. If no worktodo yet, no problem.

Restart mprime.

Linux users may clarify it better.[/QUOTE]
:tu:

In general though, we recommend only one core per test, because overall you get more work done; using multithreading is never quite as efficient as a single core per test.

[CODE]./mprime -m[/CODE]

Option #2