Compute environment notes - Revision history

imported>Bobd: /* Building a faster Octave */

2012-09-18T18:33:54Z

Building a faster Octave

← Older revision		Revision as of 18:33, 18 September 2012
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	=Building a faster Octave=		=Building a faster Octave=
	* Get the Intel MKL, follow intel's instructions for installing.		* Get the Intel MKL, follow intel's instructions for installing.
			(see [http://ubuntuforums.org/showthread.php?t=553908 this article])
	* Get the Octave source code		* Get the Octave source code
	** configure octave:		** configure octave:

imported>Bobd: /* Building a faster Octave */

2012-09-17T19:16:18Z

Building a faster Octave

imported>Bobd: /* Building a faster Octave */

2012-09-17T19:10:46Z

Building a faster Octave

← Older revision		Revision as of 19:10, 17 September 2012
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	export LD_LIBRARY_PATH="/opt/intel/lib/intel64:/opt/intel/mkl/lib/intel64:$LD_LIBRARY_PATH"		export LD_LIBRARY_PATH="/opt/intel/lib/intel64:/opt/intel/mkl/lib/intel64:$LD_LIBRARY_PATH"
	./configure --with-blas="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-lapack="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-fftw3="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm" --with-fftw3f="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm"		./configure --with-blas="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-lapack="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-fftw3="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm" --with-fftw3f="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm"

			# Fix a small issue:
			sudo cp /usr/local/src/octave-3.6.3/config.h /usr/local/include/octave-3.6.3/octave/

			# Confgure and build pytave (make sure your env vars are still set)
			cd /usr/local/src/pytave
			./configure
			make
			sudo python setup.py install

			# Rejoyce at your faster Octave!
			# But feel some sadness at not being able to it to use more than one thread, in spite of setting the
			# OMP_NUM_THREADS env var, and also trying the MKL_NUM_THREADS env var. Oh well, it's still over 2x faster.
			# Now try your new, faster pytave. Get excited that it imports fine, and does simple stuff fine.
			# But be very sad with the run-time errors you receive when you try to do serious work. Something about
			# missing symbols. Realize that the intel library dependencies are not resolved. But why does it work in Ocatve?
			# Give up. Buy a faster computer.

imported>Bobd: Created page with "=Building a faster Octave= * Get the Intel MKL, follow intel's instructions for installing. * Get the Octave source code ** configure octave: export F77=gfortran export CFLAGS..."

2012-09-13T17:33:38Z

Created page with "=Building a faster Octave= * Get the Intel MKL, follow intel's instructions for installing. * Get the Octave source code ** configure octave: export F77=gfortran export CFLAGS..."

New page

=Building a faster Octave=
* Get the Intel MKL, follow intel's instructions for installing.
* Get the Octave source code
** configure octave:
export F77=gfortran
export CFLAGS="-O2 -fPIC -DMKL_LP64 -DM_PI=3.1415926535897932384"
export FFLAGS="-O2 -fPIC"
export CPPFLAGS="-I/opt/intel/mkl/include -I/opt/intel/mkl/include/fftw"
export LDFLAGS="-L/opt/intel/mkl/lib/intel64 -L/opt/intel/lib/intel64"
export LD_LIBRARY_PATH="/opt/intel/lib/intel64:/opt/intel/mkl/lib/intel64:$LD_LIBRARY_PATH"
./configure --with-blas="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-lapack="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-fftw3="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm" --with-fftw3f="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm"

← Older revision		Revision as of 19:16, 17 September 2012
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	./configure --with-blas="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-lapack="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-fftw3="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm" --with-fftw3f="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm"		./configure --with-blas="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-lapack="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread" --with-fftw3="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm" --with-fftw3f="-lmkl_gf_lp64 -lmkl_gnu_thread -lmkl_core -liomp5 -lpthread -lm"

	# Fix a small issue:		# Fix a small issue:
	sudo cp /usr/local/src/octave-3.6.3/config.h /usr/local/include/octave-3.6.3/octave/		sudo cp /usr/local/src/octave-3.6.3/config.h /usr/local/include/octave-3.6.3/octave/

	# Confgure and build pytave (make sure your env vars are still set)		# Confgure and build pytave (make sure your env vars are still set)
	cd /usr/local/src/pytave		cd /usr/local/src/pytave
	./configure		./configure
	make		make
	sudo python setup.py install		sudo python setup.py install

	# Rejoyce at your faster Octave!		Rejoyce at your faster Octave!
	# But feel some sadness at not being able to it to use more than one thread, in spite of setting the		But feel some sadness at not being able to it to use more than one thread, in spite of setting the
	# OMP_NUM_THREADS env var, and also trying the MKL_NUM_THREADS env var. Oh well, it's still over 2x faster.		OMP_NUM_THREADS env var, and also trying the MKL_NUM_THREADS env var. Oh well, it's still over 2x faster.
	# Now try your new, faster pytave. Get excited that it imports fine, and does simple stuff fine.		Now try your new, faster pytave. Get excited that it imports fine, and does simple stuff fine.
	# But be very sad with the run-time errors you receive when you try to do serious work. Something about		But be very sad with the run-time errors you receive when you try to do serious work. Something about
	# missing symbols. Realize that the intel library dependencies are not resolved. But why does it work in Ocatve?		missing symbols. Realize that the intel library dependencies are not resolved. But why does it work in Ocatve?
	# Give up. Buy a faster computer.		Give up. Buy a faster computer.