Lapack Library Mac Os X
On many systems, the fastest BLAS implementation available is GotoBLAS. The latest version as of this writing is GotoBLAS2 1.00, which also will build LAPACK 3.1.1 from Netlib into the library if you have a FORTRAN compiler installed. I ran into a couple of snags when building this particular version of GotoBLAS, so here is how I worked around the problems on my test Mac and Ubuntu Linux systems.
2017-9-9 此处很可能会提示您没有安装blas和lapack库，您安装一下就可用了。注意编译语句的armadillo库的版本，你使用的是哪一个版本是改成哪一个版本即可。 在Mac平台下，如果你有openblas，请把blas库换成openblas；把blas和lapack换成framework Accelerate。. 2018-12-18 Building From Source on Mac OSX. OS X comes with GNU C compilers pre-installed. The only thing missing is the GNU FORTRAN compiler. We recommend gfortran; this is a free, open source, F95 compiler. As of Scipy version 1.2.0, we do not support compiling against the system Accelerate library for BLAS and LAPACK. It does not support a. 2019-11-24 Linking LAPACK in Fortran on Mac OS X. Ask Question Asked 6 years ago. Yes, the docs made that clear. I think if LAPACK requires that method to be linked in, your task is to find the library where it lives and add it to your link path. – duffymo Nov 1 '13 at 13:43. Add a comment. PcapsE-OS X is a wrapper of tcpreplay directly integrated on Mac OS X Mavericks 10.9.3 for the execution of caps files that generate simulated malware traffic to test IDS Mac OS X based or redirecting simulated malware traffic on the interface of the IDS to other devices that perform correlation of events.
2020-3-26 Instead of calling LAPACK routines from a C-language program, you can use the C interface to LAPACK provided by Intel® MKL. The C interface to LAPACK is a C-style interface to the LAPACK routines. This interface supports matrices in row-major and column-major order, which you can define in the first function argument matrixorder.
On both systems
Without the following change, GotoBLAS and LAPACK will still build, but only the static library (.a file) will include LAPACK functions. To get LAPACK in the shared library (.so or .dylib file), there is a line in Makefile.system that needs to be uncommented. One can patch Makefile.system in the extracted GotoBLAS source code directory with this:
Mac OS X
Lapack Library Mac Os X 9
I am running Mac OS X 10.6 on a Core 2 Duo system. Other OS versions and CPUs may have less or more things to work around than are mentioned here.
Openblas
Currently Mac OS X does not include a FORTRAN compiler, so I downloaded and installed gfortran 4.2.3 from the R for Mac OS X web site1. You could alternatively try building CLAPACK, which needs only a C compiler, linking that with GotoBLAS yourself, but I had a bit of trouble doing so.
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If you don’t have wget installed (it does not come by default on my version of OS X), you’ll need to tell the Makefile to use curl instead. Apply the following patch:
Now you can start compiling! Fire off the build with make GETARCH_FLAGS=-m32. If you have a 32 bit system you shouldn’t need the GETARCH_FLAGS business, and you may not need it on Leopard or earlier versions of OS X either. I don’t know.
Lastly, on OS X make does not seem to copy the shared object to the root of the source directory with the static version of the library. After compilation has finished, mv exports/libgoto2_*.dylib . to move it to here.
Ubuntu
My test Ubuntu system is a Core 2 Quad running the AMD64 version of Ubuntu 9.04. If you want LAPACK, you will need to make sure you have the gfortran installed, or perhaps some other FORTRAN compiler. Aside from the above patch to Makefile.system, nothing else special had to be done on this machine.
Install libraries and headers
The makefile does not include an install target, so no matter your OS, you’ll need to copy your libraries and headers somewhere where the compiler and linker can find them. I used /usr/local/lib and /usr/local/include, respectively.
Lapack Library Mac Os X 7
The last symlink for libgoto.dylib applies only to Mac OS X systems. Shared libraries have the .so file extension on Linux and any other Unix I know of, so name the link and make it to the appropriate .so file on non-Mac systems.
I put the headers in the goto subdirectory of /usr/local/include because another version of BLAS and/or LAPACK on the system will likely have headers with the same name. This way it is possible to ensure that the correct header is being used to declare Goto BLAS functions by using #include <goto/cblas.h>.
Lapack Linux
If one wishes to call LAPACK functions from C based programs instead of or in addition to FORTRAN, it is also a good idea to install header files with declarations of C prototypes for LAPACK functions. These don’t come with GotoBLAS, but some headers that worked for me can be found with CLAPACK. To match the version of LAPACK included with GotoBLAS2 1.00, download CLAPACK 3.1.1, extract, and copy CLAPACK-3.1.1/INCLUDE/f2c.h and CLAPACK-3.1.1/INCLUDE/clapack.h to /usr/local/include/goto. Now LAPACK function declarations are available by using
With these #includes in the necessary source files, GotoBLAS functions can now be used for all kinds of number crunching on matrices and vectors. Just remember to add the -lgoto -lgfortran flags to gcc when linking! To see some examples of how to use BLAS and LAPACK functions from C using GotoBLAS2 installed this way, take a look at what I do in my labench project.
C++ Lapack
1 Note that this version of gfortran compiles to 32 bit by default. If you are running Snow Leopard on a 64 bit Mac, gcc will normally build everything as 64 bit by default. You can tell gfortran to compile to 64 bit with the -m64 flag, though. GotoBLAS should automatically tell gfortran to use this flag when compiling the included LAPACK if you have a 64 bit system.