pthread issue

[Erling D. Andersen]

Hi 

I build blis using the latest source (from AMD though) with

   ./configure --enable-threading=pthreads amd64

Then when I compile against the blis I get

  blis.h(1344): error: identifier "pthread_barrier_t" is undefined

    typedef pthread_barrier_t      bli_pthread_barrier_t;

          ^

I find that very strange. Do you have any clue what could be wrong?

Erling

[Jeff Hammond]

What operating system? Pthread barrier isn’t standard. It’s usually there on Linux. We have a workaround for MacOS but it may not be tuned for high core count. 

Sent from my iPhone

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[Erling D. Andersen]

I used the -std=c99 option with Intel C on Linux. That seems to have caused the problem.

[Devin Matthews]

I used the -std=c99 option with Intel C on Linux. That seems to have caused the problem.

Maybe _POSIX_C_SOURCE needs to be set to an appropriate value?

[Devin Matthews]

I used the -std=c99 option with Intel C on Linux. That seems to have caused the problem.

Maybe _POSIX_C_SOURCE needs to be set to an appropriate value?

Looks like -D_POSIX_C_SOURCE=200809L is a possiblity. Can you try putting this in the compile line (with -std=c99) and see if that fixes it?