c++cgcclibm

How to use Intel's Math function library with gcc?

I am trying the following: gcc -o foo foo.c -L /path/to/directory/containing/libimf.so -limf and I have used 'log2' function in foo.c. I want it to link with Intel optimized library function but I am getting the following error

/usr/bin/ld: skipping /path/to/libimf.so when searching for -limf

/usr/bin/ld: cannot find -limf

collect2: error: ld returned 1 exit status

Solution

  • I was using the wrong libimf.so for the linking. There were two different libimf.so at two different locations corresponds to Intel MIC and Intel IA64 architecture. It worked with correct one(IA-64).