topic Extremely simple offload example: "Unexpected number of variable descriptors" in Intel® Fortran Compiler

Extremely simple offload example: "Unexpected number of variable descriptors"

PKM — Tue, 22 Jul 2014 09:07:10 GMT

In the extremely simple example below I never enter the offload region, but receive the runtime error message: "Unexpected number of variable descriptors"

What could possibly be the problem here? I run the latest version of parallel studio XE on windows server 2008 R2.

Best regards,

    program Console2
    implicit none
    print *,'Starting on host ...'
!DIR$ OFFLOAD BEGIN TARGET(mic:0)
    print *,'On phi ...'
!DIR$ END OFFLOAD
    print *,'Back on host ...'
    end program Console2

Compiler arguments:

/nologo /debug:full /Od /warn:interfaces /module:"x64\Debug\\" /object:"x64\Debug\\" /Fd"x64\Debug\vc110.pdb" /traceback /check:all /libs:static /threads /dbglibs /c

Linker arguments:

/OUT:"x64\Debug\Console2.exe" /INCREMENTAL:NO /NOLOGO /qoffload-ldopts="-lifcoremt" /MANIFEST /MANIFESTFILE:"C:\Users\casper.kirkegaard\Documents\Visual Studio 2012\Projects\Console2\Console2\x64\Debug\Console2.exe.intermediate.manifest" /MANIFESTUAC:"level='asInvoker' uiAccess='false'" /DEBUG /PDB:"C:\Users\casper.kirkegaard\Documents\Visual Studio 2012\Projects\Console2\Console2\x64\Debug\Console2.pdb" /SUBSYSTEM:CONSOLE /IMPLIB:"C:\Users\casper.kirkegaard\Documents\Visual Studio 2012\Projects\Console2\Console2\x64\Debug\Console2.lib"

I don't know what the

Kevin_D_Intel — Tue, 22 Jul 2014 09:31:14 GMT

I don't know what the underlying issue is just yet, but I reproduced the error and this occurs because of /check:all.

Can you change the property setting Fortran > Run-time > Runtime Error Checking back to Custom and then you can select Yes to all of the individual checks except for Check for Uninitialized Variables which when set leads to the error.

I will investigate this further and post again when I know more.

The error occurs in

Kevin_D_Intel — Tue, 22 Jul 2014 15:03:59 GMT

The error occurs in conjunction with /debug:full and /check:uninit. I directed this to Development (see internal tracking id below) and will keep you updated about a fix. You may temporarily work around the issue by avoiding that option combination.

(Internal tracking id: DPD200358961)

Thanks Kevin ...

PKM — Wed, 23 Jul 2014 05:54:28 GMT

Thanks Kevin ...

This issue is also exists in

Kevin_D_Intel — Fri, 25 Jul 2014 20:46:09 GMT

This issue is also exists in the current 15.0 Beta, but it has been fixed for the upcoming 15.0 initial release.