[Openmp-dev] dynamic ordered for loop failure when compiling with gcc

[Churbanov, Andrey via Openmp-dev]

Hi,

Your code fails to compile because “printf” is undeclared.
If I add #include <stdio.h> the code works fine when compiled with gcc:

bash-4.2$ gcc -fopenmp -std=c99 gcc-ordered.c -L.
bash-4.2$ KMP_VERSION=1 ./a.out
Intel(R) OMP version: 5.0.20140926
Intel(R) OMP library type: performance
Intel(R) OMP link type: dynamic
Intel(R) OMP build time: no_timestamp
Intel(R) OMP build compiler: GCC 4.8
Intel(R) OMP alternative compiler support: yes
Intel(R) OMP API version: 5.0 (201611)
Intel(R) OMP dynamic error checking: no
Intel(R) OMP thread affinity support: not used
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bash-4.2$ gcc --version
gcc (GCC) 4.8.2 20140120 (Red Hat 4.8.2-16)

Regards,
Andrey

From: Openmp-dev [mailto:openmp-dev-bounces at lists.llvm.org] On Behalf Of Tianyi Zhang via Openmp-dev
Sent: Saturday, October 13, 2018 12:17 AM
To: openmp-dev at lists.llvm.org
Subject: [Openmp-dev] dynamic ordered for loop failure when compiling with gcc

Hi,
I have the following code failure when compiling with gcc.

It seems that under kmp_gsupport.cpp, the long*p_lb is not properly read.

Could anyone help with this?

Thanks!


int main(){
#pragma omp parallel for schedule(dynamic) ordered
    for (int i = 0; i < 10; i++)
    {
#pragma omp ordered
        {
            printf("%d\n ", i);
        }
    }
}

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