mirror of
https://github.com/Ponce/slackbuilds
synced 2024-11-18 22:06:04 +01:00
50 lines
2.5 KiB
Text
50 lines
2.5 KiB
Text
|
The following notes apply just for LAPACK built against ATLAS.
|
||
|
|
|
||
|
|
IMPORTANT NOTES:
|
||
|
|
|
||
|
|
|
||
|
|
1) If you update ATLAS, you MUST also rebuild and reinstall LAPACK, even if
|
||
|
|
there is no update available for LAPACK! Otherwise you end up with a
|
||
|
|
broken/incomplete LAPACK library!
|
||
|
|
|
||
|
|
2) This SlackBuild conflicts with the lapack.SlackBuild which is meant mainly
|
||
|
|
for compilation against the reference BLAS. You may install LAPACK by
|
||
|
|
this SlackBuild in parallel with the LAPACK built against the reference BLAS
|
||
|
|
if you use the SYS_DESTDIR and DEFAULT_DOCS variables (see below), but then
|
||
|
|
you are on your own, especially when compiling other software against LAPACK
|
||
|
|
and BLAS/ATLAS.
|
||
|
|
|
||
|
|
3) There are a few extra variables which you may want or need to give
|
||
|
|
appropriate values when calling the lapack-atlas.SlackBuild: SYS_DESTDIR,
|
||
|
|
DEFAULT_DOCS, USE_ATLAS_PT_LIBS and TEST_LAPACK.
|
||
|
|
|
||
|
|
SYS_DESTDIR is set by default to "/usr" and is the system destination
|
||
|
|
directory. When installing the package produced by this SlackBuild,
|
||
|
|
LAPACK's files will be written to $SYS_DESTDIR/lib (or lib64).
|
||
|
|
Documentation files are written to /usr/doc/lapack-atlas-$VERSION if not
|
||
|
|
otherwise stated (see below).
|
||
|
|
You may want to change the value of SYS_DESTDIR to avoid conflicts (see
|
||
|
|
the notes above). IMPORTANT: SYS_DESTDIR has to have an absolute
|
||
|
|
path as value.
|
||
|
|
|
||
|
|
DEFAULT_DOCS has the default value "yes", which means that docs go
|
||
|
|
to /usr/doc/lapack-atlas-$VERSION, but you may want to let the docs to
|
||
|
|
go to $SYS_DESTDIR/doc/lapack-atlas-$VERSION. For this, just set this
|
||
|
|
variable to something like "no".
|
||
|
|
|
||
|
|
USE_ATLAS_PT_LIBS is set by default to "yes" which means that this script
|
||
|
|
will try to build LAPACK against the threaded ATLAS libs. On a single
|
||
|
|
processor machine these are missing and you will get a WARNING which you
|
||
|
|
can ignore, since ATLAS will not create these libraries on such a machine.
|
||
|
|
On a multi processor machine the WARNING should not be there and you need to
|
||
|
|
set this variable to "no" if you want to force LAPACK to build against the
|
||
|
|
single threaded ATLAS libraries. At this point in time this is discouraged
|
||
|
|
and you are on your own if you do it, especially when compiling other
|
||
|
|
software which depends on LAPACK and ATLAS.
|
||
|
|
|
||
|
|
TEST_LAPACK is set by default to "no" which means that this script will not
|
||
|
|
try to run the LAPACK test suite. Set it to "yes" if you want the opposite.
|
||
|
|
|
||
|
|
All these settings may be done the usual way on the command line when
|
||
|
|
calling this SlackBuild, you do not have to edit the script.
|