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Update README
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README.md
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README.md
@ -36,6 +36,30 @@ make
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make check
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```
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A good practice is to make out-of-source builds, because you can easily find
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out what files have been produced by the build system, and you can also work
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with differently configured versions of the library at the same time.
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For example, you can create a debug build compiled with gcc, and a fast build
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compiled with Intel compilers:
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```
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./autogen.sh
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mkdir -p _build_gcc_debug/_install
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cd _build_gcc_debug
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../configure --enable-debug --prefix=$PWD/_install
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make -j
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make -j check
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cd ..
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mkdir -p _build_intel_fast/_install
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cd _build_intel_fast
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../configure --prefix=$PWD/_install --enable-hpc --with-icc --with-ifort
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make -j
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make -j check
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```
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## For users
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Obtain a source distribution.
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@ -51,8 +75,7 @@ To build an optimized version with Intel compilers:
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./configure \
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--with-icc \
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--with-ifort \
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--enable-hpc \
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--with-openmp
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--enable-hpc
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```
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To build an optimized version with GCC:
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@ -62,8 +85,7 @@ To build an optimized version with GCC:
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CFLAGS="-g -O2 -march=native -flto -fno-trapping-math -fno-math-errno -ftree-vectorize" \
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FC=gfortran \
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FCFLAGS="-g -O2 -march=native -flto -ftree-vectorize" \
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--enable-hpc \
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--with-openmp
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--enable-hpc
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```
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