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| author | MarcelineVQ <matthewnhyatt@gmail.com> | 2015-12-23 01:23:33 +0100 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2015-12-23 10:05:39 +0100 |
| commit | 7ed0da6cde909e662d09e1f39c3fccfa10f91a7f (patch) | |
| tree | 5afdda1d857199b41a520db124083991daa04ae6 /docs | |
| parent | ed213ead5e92aa3c2ae830a00f06684a1028d3ad (diff) | |
| download | haskell-7ed0da6cde909e662d09e1f39c3fccfa10f91a7f.tar.gz | |
Modify Nmax to maxN Trac #10728
Added test and changed -Nmax to -maxN, -n was taken
Noticed strange -m behavoir and fixed -m from quietly
ignoring being passed invalid opts, e.g. "-msasd"
Reviewers: simonmar, hvr, austin, thomie, bgamari
Reviewed By: hvr, thomie, bgamari
Subscribers: bgamari, hvr, thomie, simonmar
Differential Revision: https://phabricator.haskell.org/D1677
GHC Trac Issues: #10728
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/users_guide/7.12.1-notes.rst | 5 | ||||
| -rw-r--r-- | docs/users_guide/using-concurrent.rst | 9 |
2 files changed, 10 insertions, 4 deletions
diff --git a/docs/users_guide/7.12.1-notes.rst b/docs/users_guide/7.12.1-notes.rst index caa1d897a8..678a9778a8 100644 --- a/docs/users_guide/7.12.1-notes.rst +++ b/docs/users_guide/7.12.1-notes.rst @@ -40,6 +40,8 @@ The highlights, since the 7.10 branch, are: - A rewritten (and greatly improved) pattern exhaustiveness checker +- ``-maxN(x)`` added to compliment ``-N`` + - GHC can run the interpreter in a separate process (see :ref:`external-interpreter`), and the interpreter can now run profiled code. @@ -332,6 +334,9 @@ Runtime system - Support for performance monitoring with PAPI has been dropped. +- ``-maxN(x)`` flag added to compliment ``-N``, it will choose to use at most + (x) capabilities, limited by the number of processors as ``-N`` is. + Build system ~~~~~~~~~~~~ diff --git a/docs/users_guide/using-concurrent.rst b/docs/users_guide/using-concurrent.rst index 2621afce0f..b2b235ad3e 100644 --- a/docs/users_guide/using-concurrent.rst +++ b/docs/users_guide/using-concurrent.rst @@ -110,11 +110,11 @@ There are two ways to run a program on multiple processors: call RTS ``-N`` options. ``-N⟨x⟩`` -``-Nmax⟨x⟩`` +``-maxN⟨x⟩`` .. index:: single: -N⟨x⟩; RTS option - single: -Nmax(x); RTS option + single: -maxN(x); RTS option Use ⟨x⟩ simultaneous threads when running the program. @@ -136,8 +136,9 @@ RTS ``-N`` options. value of ⟨x⟩ itself based on how many processors are in your machine. - With Nmax⟨x⟩, i.e. ``+RTS -Nmax3 -RTS``, the runtime will choose at - most (x), also limited by the number of processors on the system. + With ``-maxN⟨x⟩``, i.e. ``+RTS -maxN3 -RTS``, the runtime will choose + at most (x), also limited by the number of processors on the system. + Omitting (x) is an error, if you need a default use option ``-N``. Be careful when using all the processors in your machine: if some of your processors are in use by other programs, this can actually harm |