Default value for numCapabilities?

[Bryan O'Sullivan]

On Tue, Apr 27, 2010 at 9:09 AM, Dimitry Golubovsky <golubovsky at gmail.com>wrote:

>

how is the default value of numCapabilities [2]
> set when +RTS -N is not on the command line?
>
> Does GHC runtime figure out the number of cores itself,
>

With 6.12.1 and newer, no "-N" argument implies 1 core, "-N*k*"
implies *k* cores,
and "-N" without an argument means "use all".
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