[mira_talk] Re: multiple processors
- From: Lionel Guy <guy.lionel@xxxxxxxxx>
- To: mira_talk@xxxxxxxxxxxxx
- Date: Tue, 1 Dec 2009 12:38:59 +0100
Hi Brian,
AFAIK, MIRA uses multiple threads only for the skimming part (all
against all comparison). You choose the number of threads to use at
run time using -SK:not=<integer>
From the manual (http://mira-assembler.sourceforge.net/docs/mira.html):
The parameters for SKIM3:
number_of_threads(not)=integer >= 1 Number of threads used in SKIM,
default is 2. A few parts of SKIM are non-threaded, so the speedup is
not exactly linear, but it should be very close. E.g., with 2
processors I get a speedup of 170%.
Although the main data structures are shared between the threads,
there's some additional memory needed for each thread.
HTH,
Lionel
On 1 Dec 2009, at 12:09 , Brian Forde wrote:
Hi
You say mira supports multiple processors. Is there a flag when
running mira to do this or is it specified during installation
regards
Brian
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