LAPACK - Revision history

Jciccone at 00:39, 20 March 2009

2009-03-20T00:39:23Z

← Older revision		Revision as of 17:39, 19 March 2009
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	----		----

	{{Package-Introduction\|LAPACK is a '''L'''inear '''A'''lgebra '''PACK'''age that provides routines for solving systems of simultaneous linear equations, least-squares solutions of linear systems of equations, eigenvalue problems, and singular value problems. The associated matrix factorizations (LU, Cholesky, QR, SVD, Schur, generalized Schur) are also provided, as are related computations such as reordering of the Schur factorizations and estimating condition numbers. Dense and banded matrices are handled, but not general sparse matrices. In all areas, similar functionality is provided for real and complex matrices, in both single and double precision. LAPACK routines are written so that as much as possible of the computation is performed by calls to the [[~~BLAS~~]].		{{Package-Introduction\|LAPACK is a '''L'''inear '''A'''lgebra '''PACK'''age that provides routines for solving systems of simultaneous linear equations, least-squares solutions of linear systems of equations, eigenvalue problems, and singular value problems. The associated matrix factorizations (LU, Cholesky, QR, SVD, Schur, generalized Schur) are also provided, as are related computations such as reordering of the Schur factorizations and estimating condition numbers. Dense and banded matrices are handled, but not general sparse matrices. In all areas, similar functionality is provided for real and complex matrices, in both single and double precision. LAPACK routines are written so that as much as possible of the computation is performed by calls to the [[ATLAS]].

	LAPACK libraries can also be obtained from ATLAS (incomplete) or the microprocessor vendor's math library, such as AMD's [[ACML]].\|http://www.netlib.org/lapack/}}		LAPACK libraries can also be obtained from ATLAS (incomplete) or the microprocessor vendor's math library, such as AMD's [[ACML]].\|http://www.netlib.org/lapack/}}

	{{Note\|These instructions do not install the resulting libraries. Once the LAPACK libraries are built, build [[ATLAS]]. You will then have optimized ~~BLAS~~ and LAPACK libraries installed.}}		{{Note\|These instructions do not install the resulting libraries. Once the LAPACK libraries are built, build [[ATLAS]]. You will then have optimized ATLAS and LAPACK libraries installed.}}

	== Dependencies ==		== Dependencies ==

Weibullguy: Simplify instructions.

2008-09-14T03:16:38Z

Simplify instructions.

Show changes

Weibullguy at 18:26, 18 August 2008

2008-08-18T18:26:43Z

← Older revision		Revision as of 11:26, 18 August 2008
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	\|Library containg the test matrix generators used in the LAPACK test suite.		\|Library containg the test matrix generators used in the LAPACK test suite.
	\|}		\|}

			[[Category:Science_Engineering]]

Weibullguy at 20:57, 29 February 2008

2008-02-29T20:57:53Z

← Older revision		Revision as of 13:57, 29 February 2008
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	* [[GCC]] built with gfortran support		* [[GCC]] built with gfortran support

	=== ~~Optional~~ ===		=== Recommended ===

	Either [[BLAS]] or [[ACML]] are recommended otherwise LAPACK will install an unoptimized version of this library.		Either [[BLAS]] or [[ACML]] are recommended otherwise LAPACK will install an unoptimized version of this library.
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	Compile the LAPACK libraries:		Compile the LAPACK libraries:

	~~./configure --prefix=/usr --libdir=/usr/lib/lapack/reference --with-blas="$(pkg-config --libs blas)" &&~~
	make		make

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	Compile the LAPACK libraries:		Compile the LAPACK libraries:

	~~./configure --prefix=/usr --libdir=/usr/lib/lapack/reference --with-blas="$(pkg-config --libs blas)" &&~~
	make		make

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	Compile the LAPACK libraries:		Compile the LAPACK libraries:

	~~./configure --prefix=/usr --libdir=/usr/lib32/lapack/reference --with-blas="$(pkg-config --libs blas)" &&~~
	make		make

Weibullguy: Nuts...not working yet after all.

2008-02-29T18:32:45Z

Nuts...not working yet after all.

Show changes

Weibullguy at 18:16, 29 February 2008

2008-02-29T18:16:26Z

← Older revision		Revision as of 11:16, 29 February 2008
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	Compile the LAPACK libraries:		Compile the LAPACK libraries:

	./configure --libdir=/usr/lib/lapack/reference --with-blas="$(pkg-config --libs blas)" &&		./configure --prefix=/usr --libdir=/usr/lib/lapack/reference --with-blas="$(pkg-config --libs blas)" &&
	make		make

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	Compile the LAPACK libraries:		Compile the LAPACK libraries:

	./configure --libdir=/usr/lib/lapack/reference --with-blas="$(pkg-config --libs blas)" &&		./configure --prefix=/usr --libdir=/usr/lib/lapack/reference --with-blas="$(pkg-config --libs blas)" &&
	make		make

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	Compile the LAPACK libraries:		Compile the LAPACK libraries:

	./configure --libdir=/usr/lib32/lapack/reference --with-blas="$(pkg-config --libs blas)" &&		./configure --prefix=/usr --libdir=/usr/lib32/lapack/reference --with-blas="$(pkg-config --libs blas)" &&
	make		make

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	Compile the LAPACK libraries:		Compile the LAPACK libraries:

	./configure --libdir=/usr/lib64/lapack/reference --with-blas="$(pkg-config --libs blas)" &&		./configure --prefix=/usr --libdir=/usr/lib64/lapack/reference --with-blas="$(pkg-config --libs blas)" &&
	make		make

Weibullguy at 14:33, 29 February 2008

2008-02-29T14:33:42Z

Show changes

Weibullguy: /* Dependencies */

2008-02-24T07:24:52Z

Dependencies

← Older revision		Revision as of 00:24, 24 February 2008
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	One of the following is required to build LAPACK:		One of the following is required to build LAPACK:

	[[GCC-3.3]] built with F77 support		* [[GCC-3.3]] built with F77 support
	[[GCC]] built with gfortran support		* [[GCC]] built with gfortran support

	=== Optional ===		=== Optional ===

Weibullguy at 21:18, 20 December 2007

2007-12-20T21:18:45Z

← Older revision		Revision as of 14:18, 20 December 2007
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	If you installed the [[BLAS]] library provided by Atlas, tell LAPACK to use this library. Replace libf77blas.a with the name of your system BLAS FORTRAN library.		If you installed the [[BLAS]] library provided by Atlas, tell LAPACK to use this library. Replace libf77blas.a with the name of your system BLAS FORTRAN library.

	sed -i 's@../../blas$(PLAT).a@/usr/lib/~~libf77blas~~.a@' make.inc		sed -i 's@../../blas$(PLAT).a@/usr/lib/blas/atlas/libblas.a@' make.inc

	If you installed the BLAS library provided by [[ACML]], tell LAPACK to use this library. Replace </path/to/libacml.a> in the command with the actual path to your ACML library.		If you installed the BLAS library provided by [[ACML]], tell LAPACK to use this library. Replace </path/to/libacml.a> in the command with the actual path to your ACML library.
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	If you installed the [[BLAS]] library provided by Atlas, tell LAPACK to use this library. Replace libf77blas.a with the name of your system BLAS FORTRAN library.		If you installed the [[BLAS]] library provided by Atlas, tell LAPACK to use this library. Replace libf77blas.a with the name of your system BLAS FORTRAN library.

	sed -i 's@../../blas$(PLAT).a@/usr/lib/~~libf77blas~~.a@' make.inc		sed -i 's@../../blas$(PLAT).a@/usr/lib/blas/atlas/libblas.a@' make.inc

	If you installed the BLAS library provided by [[ACML]], tell LAPACK to use this library. Replace </path/to/libacml.a> in the command with the actual path to your ACML library.		If you installed the BLAS library provided by [[ACML]], tell LAPACK to use this library. Replace </path/to/libacml.a> in the command with the actual path to your ACML library.
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	If you installed the [[BLAS]] library provided by Atlas, tell LAPACK to use this library. Replace libf77blas.a with the name of your system BLAS FORTRAN library.		If you installed the [[BLAS]] library provided by Atlas, tell LAPACK to use this library. Replace libf77blas.a with the name of your system BLAS FORTRAN library.

	sed -i 's@../../blas$(PLAT).a@/usr/lib32/~~libf77blas~~.a@' make.inc		sed -i 's@../../blas$(PLAT).a@/usr/lib32/blas/atlas/libblas.a@' make.inc

	If you installed the BLAS library provided by [[ACML]], tell LAPACK to use this library. Replace </path/to/libacml.a> in the command with the actual path to your ACML library.		If you installed the BLAS library provided by [[ACML]], tell LAPACK to use this library. Replace </path/to/libacml.a> in the command with the actual path to your ACML library.
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	If you installed the [[BLAS]] library provided by Atlas, tell LAPACK to use this library. Replace libf77blas.a with the name of your system BLAS FORTRAN library.		If you installed the [[BLAS]] library provided by Atlas, tell LAPACK to use this library. Replace libf77blas.a with the name of your system BLAS FORTRAN library.

	sed -i 's@../../blas$(PLAT).a@/usr/lib64/~~libf77blas~~.a@' make.inc		sed -i 's@../../blas$(PLAT).a@/usr/lib64/blas/atlas/libblas.a@' make.inc

	If you installed the BLAS library provided by [[ACML]], tell LAPACK to use this library. Replace </path/to/libacml.a> in the command with the actual path to your ACML library.		If you installed the BLAS library provided by [[ACML]], tell LAPACK to use this library. Replace </path/to/libacml.a> in the command with the actual path to your ACML library.

Weibullguy at 18:40, 31 May 2007

2007-05-31T18:40:30Z

← Older revision		Revision as of 11:40, 31 May 2007
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	\|}		\|}

	~~<b>NOTE:</b>~~ Do not remove the source tree if you plan to build the LAPACK 95 interface.		{{Note\|Do not remove the source tree if you plan to build the LAPACK 95 interface.}}

	== Non-Multilib ==		== Non-Multilib ==
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	sed -i 's@../../blas$(PLAT).a@</path/to/libacml.a>@' make.inc		sed -i 's@../../blas$(PLAT).a@</path/to/libacml.a>@' make.inc

	~~<b>NOTE:</b>~~ If you want to build and execute the LAPACK test suite, <i>it will fail if you're using the ATLAS BLAS library.</i> From the LAPACK release notes, "The LAPACK test suite needs to be modified to allow for the inversion of diagonal elements, as ATLAS's implementation of xTRSM is valid." There is currently no patch available so you will need to edit the code manually or skip the test suite.		{{Note\|If you want to build and execute the LAPACK test suite, <i>it will fail if you're using the ATLAS BLAS library.</i> From the LAPACK release notes, "The LAPACK test suite needs to be modified to allow for the inversion of diagonal elements, as ATLAS's implementation of xTRSM is valid." There is currently no patch available so you will need to edit the code manually or skip the test suite.}}

	If not using the ATLAS BLAS library, tell LAPACK to build and execute the test suite.		If not using the ATLAS BLAS library, tell LAPACK to build and execute the test suite.
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	sed -i 's@lib: lapacklib tmglib@lib: blaslib blas_testing lapacklib tmglib lapack_testing@' Makefile		sed -i 's@lib: lapacklib tmglib@lib: blaslib blas_testing lapacklib tmglib lapack_testing@' Makefile

	~~<b>NOTE:</b>~~ If you want to build and execute the LAPACK test suite, <i>it will fail if you're using the ATLAS BLAS library.</i> From the LAPACK release notes, "The LAPACK test suite needs to be modified to allow for the inversion of diagonal elements, as ATLAS's implementation of xTRSM is valid." There is currently no patch available so you will need to edit the code manually or skip the test suite.		{{Note\|If you want to build and execute the LAPACK test suite, <i>it will fail if you're using the ATLAS BLAS library.</i> From the LAPACK release notes, "The LAPACK test suite needs to be modified to allow for the inversion of diagonal elements, as ATLAS's implementation of xTRSM is valid." There is currently no patch available so you will need to edit the code manually or skip the test suite.}}

	If not using the ATLAS BLAS library, tell LAPACK to build and execute the test suite.		If not using the ATLAS BLAS library, tell LAPACK to build and execute the test suite.