topic I go through the intel "mpi" in Intel® Fortran Compiler

Optimization flags documentation

KK1 — Thu, 05 Feb 2015 03:03:50 GMT

Hi,

Where can I get the documentation of the optimization flags and explanation for ifort and mpiifort 15.0.1.

Thx.

See https://software.intel

mecej4 — Thu, 05 Feb 2015 12:28:02 GMT

See https://software.intel.com/en-us/node/524877 for the section on options. The complete compiler documentation is at https://software.intel.com/en-us/node/524874 .

https://software.intel.com/en

Steven_L_Intel1 — Thu, 05 Feb 2015 14:51:17 GMT

https://software.intel.com/en-us/compiler_15.0_ug_f is the link I would suggest keeping around for the current documentation. The /node/ links tend to go stale after a new release.

By the way, "mpifor" is not a

Steven_L_Intel1 — Thu, 05 Feb 2015 14:53:00 GMT

By the way, "mpifort" is not a command provided by Intel Fortran.

I go through the intel "mpi"

KK1 — Tue, 10 Feb 2015 02:57:49 GMT

I go through the intel "mpi" documentation (https://software.intel.com/en-us/node/528771), as I am using "mpiifort", version 15.0.1. I did not find any information about the following compilation flags:

-DALLOW_NON_INIT

-nofor_main

However, I still can compile my program with these. Where can I get the complete documentation of flags?

The current Intel Fortran

mecej4 — Tue, 10 Feb 2015 08:12:00 GMT

The current Intel Fortran manual contains "-nofor-main" in some places and "-nofor_main" in other places. The spelling actually used may have been different for different versions of the Linux and OSX IFort compilers.

The -D flag is universally used by language compilers on Unix/Linux/OSX, and sometimes Windows, to define a string for the preprocessor. The string that follows the flag is user selected, and may be of the two forms -Dstr or -Dstr1=str2. The first form is used with #ifdef and #ifndef preprocessor directives. With the second form, str1 is replaced by str2 throughout the source file being processed.

The compiler tends to accept

Steven_L_Intel1 — Tue, 10 Feb 2015 16:48:09 GMT

The compiler tends to accept both - and _ in older options.