MAGMA Forum

Dear all,
When I am trying to compile magma with intel compilers (17 up 5), the compilation fails, saying math.h isinf and isnan functions are not recognized.
Actually this problem is known: https://software.intel.com/en-us/forums ... pic/638013

It seems a workaround solution is to bake a macro in the source code such that the correct math.h is included.

Maybe you can consider this workaround in your source tree?

Can you give the specific error output, when doing 'make -j1' (i.e., single-threaded make). That will be helpful to understand where the error occurs.
-mark

I also meet this problem. I am not using intel compiler, but using gnu compiler

Again, please provide some specifics such as your platform, g++ version, and the output of "make -j1" showing the error, so that we can attempt to reproduce the issue.
-mark

This appears to be the same problem that I reported this evening with testing/testing_zlange.cpp. I've given more specific error messages in my report.

The link on the Intel site seems to be the *opposite* problem, namely that using std::isinf and std::isnan fails when including both math.h and cmath, with Intel icc 16 + gcc 6. That problem I can replicate. It doesn't occur for icc 17 or 18.

I haven't been able to replicate the problem that using isinf and isnan (without std:: prefix) fails. MAGMA includes math.h, so isinf and isnan should be defined.

See further discussion at viewtopic.php?f=2&t=1659

-mark

This problem should be resolved now in the bitbucket repo. The MAGMA testers include cmath and use std::isinf, std::isnan, and std::copysign.
-mark