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| Compiling Singular for best performance https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=2111 |
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| Author: | yashodhan.karandikar [ Fri Jun 22, 2012 6:01 am ] |
| Post subject: | Compiling Singular for best performance |
While compiling Singular 3-1-3 on Linux, I observed the use of "-g" flag in the output of "make" command. Is this the default flag ? Which options during configure should be used for getting best runtime performance of Singular ? |
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| Author: | hannes [ Fri Jun 22, 2012 3:09 pm ] |
| Post subject: | Re: Compiling Singular for best performance |
If your version of gcc supports -march, you may use this. Also -O3 instead of -O2 may help (but does it not work with gcc 4.6). For example (assume that your shell is bash): Code: export CC="gcc -march=native"
export CXX="g++ -march=native" export CFLAGS="-O3 -fomit-frame-pointer" export CXXFLAGS="-O3 -fomit-frame-pointer" ./configure |
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