[julia-users] CCALL to intel MKL on MAC ?

[Lionel du Peloux]

Dear all,

I'm struggling with the Julia C-API. I've installed the last version of the 
Intel Composer on my Mac (MKL & C++ compiler).
I thought I could call MKL directly from Julia with the C-API as explained 
in the doc, using MKL Single Dynamic Library 
<https://registrationcenter.intel.com/irc_nas/2690/mkl_userguide_mac.pdf>(SDL) 
model.

I've tried to wrap the asum for double (inspired by the Base.LinAlg.BLAS 
source code) :

function myasum(n::Integer, X::Vector{Float64}, incx::Integer)
  ccall((:cblas_dasum, "/opt/intel/mkl/lib/libmkl_rt"), 
        Float64, 
        (Ptr{Int64}, Ptr{Float64}, Ptr{Int64}),
        &n, X, &incx)
end

X = Float64[1,2,3]
myasum(3,X,1)

It seems the dylib is reached and the "cblas_dasum" is the right name to 
call (otherwidse I get some errors about that).

But now my Julia gets into this error :
Intel MKL FATAL ERROR:
Cannot load libmkl_intel_thread.dylib.

I've tried to add /opt/intel/mkl/lib and /opt/intel/lib directories to my 
PATH, but I still get the same error ...

Do you have any though how I can make it work ??

Thank you for helping,
Lionel