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offload_signaled documentation

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In the C++ (v16.0 update 1) documentation:

Determining if Code has Completed Running on a Coprocessor

To determine if a section of offloaded code has completed running on a given coprocessor, you can use the API _Offload_signaled().

The syntax for this API is:

extern int _Offload_signaled(int target_number, void *signal);

 

Nowhere is it described what the return values are.

Same thing in the Fortran documentation

Determining if Code has Completed Running on a Coprocessor

To determine if a section of offloaded code has completed running on a given coprocessor, you can use the API OFFLOAD_SIGNALED().

The syntax for this API is:

OFFLOAD_SIGNALED(target_number,signal)

 

And you have to look inside mic_lib.f90 to find it returns an integer without specifying what the values can be.

 

In the mic_lib.f90 we find:

enum, bind(C)
    enumerator :: OFFLOAD_SUCCESS  = 0
    enumerator :: OFFLOAD_DISABLED          ! offload is disabled
    enumerator :: OFFLOAD_UNAVAILABLE       ! card is not available
    enumerator :: OFFLOAD_OUT_OF_MEMORY     ! not enough memory on device
    enumerator :: OFFLOAD_PROCESS_DIED      ! target process has died
    enumerator :: OFFLOAD_ERROR             ! unspecified error
end enum

But it is not stated (clear) as if these are, or are the only return values. If they are the return values, then missing is OFFLOAD_BUSY

Does someone know what the return values are for OFFLOAD_SIGNALED?

Jim Dempsey


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