[cmake-developers] Is there an official FindMKL module?

[Siebren Reker]

Hi Tim,

That is encouraging, thanks. I went back and tried harder this time, when I
specified BLA_VENDOR precisely and leave BLA_STATIC off, I am able to get
to the correct versions.
In the very same directory where the shared libraries are found, I have the
static libraries as well, but BLA_STATIC on in that case does not find the
libraries.

I've read up a bit on this now, so maybe the following information is
helpful:
This is a CMake 3.3.0 installation
My project has both C and Fortran enabled
I call it as follows:

set( BLA_STATIC ON)
set( BLA_VENDOR "Intel10_64lp_seq")
find_package( BLAS )

Is BLA_STATIC = ON working for you?

A separate question I have is if the linker command that will be produced
afterwards is of course different from the one supplied by Intel in their
tool. Should that not concern me?

kind regards,
Siebren


On Wed, Aug 26, 2015 at 4:59 PM, Tim Gallagher <tim.gallagher at gatech.edu>
wrote:

> We sometime struggled to get it working, but we never had to resort to
> using a FindMKL -- FindBLAS and FindLAPACK work just fine for us, provided
> we do things "correctly."
>
> So long as we have sourced the mklvars script that ships with Intel MKL
> and we put:
>
> BLA_VENDOR=Intel10_64lp_seq ccmake /path/to/source/dir
>
>
> Then everything works fine and we have no issues. So we have to give CMake
> a hint that we want to pick the Intel version rather than the generic one
> (and we're using the sequential, 64bit MKL -- if you look in FindBLAS you
> can see other vendor types).
>
> Have you had things fail when you setup your environment variables using
> the scripts Intel provides and when you set the BLA_VENDOR hint as an
> environment variable?
>
> Tim
>
> ------------------------------
> *From: *"Siebren Reker" <siebren.reker at gmail.com>
> *To: *cmake-developers at cmake.org
> *Sent: *Wednesday, August 26, 2015 10:18:44 AM
> *Subject: *[cmake-developers] Is there an official FindMKL module?
>
>
> Hello,
>
> I am using the find_package() command to load settings for the Intel Math
> Kernel Library (MKL). This works through a custom FindMKL.cmake module that
> I've made for myself.
>
> However, when looking at:
> https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/
> I can tell that what I've done is likely only correct for my specific
> case, and certainly not robust against library version changes and various
> other changes (openmp, static vs dynamic linking etc.).
>
> Instead of a FindMKL.cmake module, an alternative is to have MKL be
> discovered in the FindBLAS or FindLAPACK modules, but according to what I
> can find on the bug tracker, that solution is also in a fairly broken state:
> Bug 14138: http://www.cmake.org/Bug/view.php?id=14138
> Bug 13543: http://www.cmake.org/Bug/view.php?id=13543
> Bug 13528: http://www.cmake.org/Bug/view.php?id=13528
>
> Google tells me that many people have (like me) created their own
> FindMKL.cmake module, which are equally specific and tailored.
>
> Is anyone aware of a more "official" FindMKL module available somewhere,
> or at least something that is being somewhat maintained, either by someone
> at Kitware or Intel? Or of a plan to develop something like that?
>
> kind regards,
> Siebren Reker
>
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