Display flags used when -xHost

Intel® Fortran Compiler

Build applications that can scale for the future with optimized code designed for Intel® Xeon® and compatible processors.

Display flags used when -xHost

529 Views

Is there a way to report the flags the compiler uses when -xHost is used ???

Reason:

When compiling/running on a AMD Zen3 processor the flag -xHost gives 20% better performance than using -march=znver3. Now I need to perform the compilation on an older CPU but still target the Zen3 for execution. How do I enable the same flags as using -xHost on the Zen3 but from a different CPU?

Using GCC this can be accomplished using:

> gcc -march=native -Q --help=target

Edit:

I should mention I am using the IFX compiler (not ifort).

Link Copied

0 Replies

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.

Display flags used when -xHost

Performance