Coarray Debug Error

[Lei-D]

Hallo,

I could not debug the code with coarray.

I describe my problem in "Debugging a Fortran Coarray Error.docx".

My used environment in "MySystem.docx".

The code is "weather_parallel.zip".

Thanks for any tips!

Lei

[Steve_Lionel]

Note - the article Lei has attached and annotated is How to Gain Control of Debugging a Fortran Coarray Application, which I wrote many years ago. I don't recognize the MPI error messages shown.

[Lei-D]

Hallo, Steve,

Thanks for your note!

Could you repeat my error ? or if you have some examples which could debug coarray?

Regard,

Lei  

[Steve_Lionel]

You didn't follow the instructions exactly, as you inserted:

use Coarray_Debugging, only: Enable_Coarray_Debugging

when the article said to use:

use Coarray_Debugging

I'm not sure this mattered, though.

I did run into some issues when my system had more images than the code wanted, but when I restricted it to 8 images, I was able to debug image 2, stepping through the program code, and the program output:

 Maximum wind speed measured is    11.20000     at station 42003
 Highest mean wind speed is    10.52308     at station 42003
 Lowest mean wind speed is    3.376923     at station 42035

[Lei-D]

Hallo, Steve,

According your instruction, I have repeated the debug process and get the same error.

I find even I do delete the module "Coarray_Debugging", the error still happens, and similiar information as before. 

(Refer to the attached files)

This means the error for me related to "Distributed Memory (/Qcoarray:distributed)", in assemblage between OneAPI and MPI.

Regards

Lei

[Steve_Lionel]

Oh... Distributed. No, that won't work. Use Shared for debugging.

[Lei-D]

Hallo, Steve,

in the file "MySystem.docx" attached before, I have already mentioned: "With For Shared Memory (/Qcoarray:shared), the processes will be finished quickly without stopping. "

For me not possible to debug using Shared Memory. 

regards,

Lei

[Steve_Lionel]

It worked for me when I followed the instructions in the article.

[Lei-D]

More test results:

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With For Shared Memory (/Qcoarray:shared)

--------------------------------

excute the code in MS Visual Studio 2022,

With or without "call Enable_Coarray_Debugging":

the processes will be quickly ended without stop at any debug points,

and no output from code are found.

--------------------------------

excute the code using cmd,

with "call Enable_Coarray_Debugging": 

D:\_Jiang\Temp\Intel_Error8\weather_parallel - Kopie\Console2\x64\Debug>Console2.exe

Image 2: Console2.exe(7624)

Image 1: Console2.exe(13664)

Comment: The process waits here without end

--------------------------------

excute the code using cmd,

without "call Enable_Coarray_Debugging": 

D:\_Jiang\Temp\Intel_Error8\weather_parallel - Kopie\Console2\x64\Debug>Console2.exe

 Maximum wind speed measured is    11.20000     at station 42003

 Highest mean wind speed is    10.52308     at station 42003

 Lowest mean wind speed is    3.376923     at station 42035

Comment: The process finishes normally

**********************************************************

With For Single Image (/Qcoarray:single),

excute the code in MS Visual Studio 2022:

--------------------------------

when without "call Enable_Coarray_Debugging",

the processes will be finished with good debug,  and it finishes normally.

--------------------------------

when with "call Enable_Coarray_Debugging",

the processes will work only to the debug point "call SLEEPQQ(500)",

after that, the code seems always call SLEEPQQ(500).

**********************************************************