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Re: [PATCH] [gomp] Recycle non-nested team if possible



On 14/07/15 12:44, Jakub Jelinek wrote:

On Tue, Jul 14, 2015 at 11:28:18AM +0200, Sebastian Huber wrote:

>If I destroy the barrier of the last team, and then initialize it later in
>gomp_new_team()
>
>+static inline struct gomp_team *
>+get_last_team (unsigned nthreads)
>+{
>+  struct gomp_thread *thr = gomp_thread ();
>+  if (thr->ts.team == NULL)
>+    {
>+      struct gomp_thread_pool *pool = thr->thread_pool;
>+      if (pool != NULL)
>+       {
>+         struct gomp_team *last_team = pool->last_team;
>+         if (last_team != NULL && last_team->nthreads == nthreads)
>+           {
>+             pool->last_team = NULL;
>+             gomp_barrier_destroy (&last_team->barrier);
>+             return last_team;
>+           }
>+       }
>+    }
>+  return NULL;
>+}
>
>then I get test suite failures. Is it safe to destroy the team barrier here
>or do we circumvent the last team mechanism which is supposed to delay the
>destruction?

Then you indeed supposedly hit the reason why last_team exists.
Thus, if not reinitializing the team barrier works even with
--disable-linux-futex configured libgomp, I guess it is ok not to
destroy it and reinit it again.
The gomp_barrier_reinit() is only used for the pool->threads_dock barrier, but not for the team->barrier. I already test for last_team->nthreads == nthreads, so I don't think it makes sense to reinit, which uses an atomic operation on Linux.
I run the test suite on x86_64-unknown-linux-gnu with the previously mentioned asserts and got no unexpected failures.
With --disable-linux-futex (without asserts) I got several failures, but none of them is related to my patch, e.g. they are of the following type 

/tmp/ccw4RofR.o: In function `main':
data-already-3.f:(.text+0x56): undefined reference to `acc_copyin_array_h_'

                === libgomp tests ===

Schedule of variations:
    unix

Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for target. Using /usr/share/dejagnu/config/unix.exp as generic interface file for target. Using /home/EB/sebastian_h/archive/gcc-git/libgomp/testsuite/config/default.exp as tool-and-target-specific interface file. Running /home/EB/sebastian_h/archive/gcc-git/libgomp/testsuite/libgomp.c/c.exp ... Running /home/EB/sebastian_h/archive/gcc-git/libgomp/testsuite/libgomp.c++/c++.exp ... Running /home/EB/sebastian_h/archive/gcc-git/libgomp/testsuite/libgomp.fortran/fortran.exp ... Running /home/EB/sebastian_h/archive/gcc-git/libgomp/testsuite/libgomp.graphite/graphite.exp ... Running /home/EB/sebastian_h/archive/gcc-git/libgomp/testsuite/libgomp.oacc-c/c.exp ... Running /home/EB/sebastian_h/archive/gcc-git/libgomp/testsuite/libgomp.oacc-c++/c++.exp ... Running /home/EB/sebastian_h/archive/gcc-git/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp ... FAIL: libgomp.oacc-fortran/acc_on_device-1-1.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/acc_on_device-1-1.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/acc_on_device-1-2.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/acc_on_device-1-2.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/acc_on_device-1-3.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/acc_on_device-1-3.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/data-already-1.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/data-already-1.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/data-already-3.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/data-already-3.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/data-already-4.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/data-already-4.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/data-already-5.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/data-already-5.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/data-already-6.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/data-already-6.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/data-already-7.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/data-already-7.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-1.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/lib-1.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-2.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/lib-2.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-3.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O (test for excess errors) WARNING: libgomp.oacc-fortran/lib-3.f -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host_nonshm=1 -DACC_MEM_SHARED=0 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/acc_on_device-1-1.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O (test for excess errors) WARNING: libgomp.oacc-fortran/acc_on_device-1-1.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/acc_on_device-1-2.f -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O (test for excess errors) WARNING: libgomp.oacc-fortran/acc_on_device-1-2.f -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/acc_on_device-1-3.f -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O (test for excess errors) WARNING: libgomp.oacc-fortran/acc_on_device-1-3.f -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-1.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O (test for excess errors) WARNING: libgomp.oacc-fortran/lib-1.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-10.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-2.f -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O (test for excess errors) WARNING: libgomp.oacc-fortran/lib-2.f -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-3.f -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O (test for excess errors) WARNING: libgomp.oacc-fortran/lib-3.f -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-4.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-5.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-6.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-7.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O0 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O1 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O2 compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-loops compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -O3 -g compilation failed to produce executable FAIL: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os (test for excess errors) WARNING: libgomp.oacc-fortran/lib-8.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -Os compilation failed to produce executable 

                === libgomp Summary ===

# of expected passes            5987
# of unexpected failures        114
# of expected failures          8
# of unsupported tests          278

--
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber@embedded-brains.de
PGP     : Public key available on request.

Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.


>From 6e30dadecb5aa7f8dfb14cb0f2f4de2a56338012 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Tue, 7 Jul 2015 13:15:04 +0200
Subject: [PATCH] [gomp] Recycle last non-nested team if possible

Try to recycle the last non-nested team to avoid the use of malloc() and
free() in the normal case where the number of threads is the same.
Avoid superfluous destruction and initialization of team synchronization
objects.

Using the microbenchmark posted here

https://gcc.gnu.org/ml/gcc-patches/2008-03/msg00930.html

shows an improvement in the parallel bench test case (target
x86_64-unknown-linux-gnu, median out of 9 test runs, iteration count
increased to 200000).

Before the patch:

parallel bench 11.2284 seconds

After the patch:

parallel bench 10.5912 seconds

libgomp/ChangeLog
2015-07-14  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* team.c (get_last_team): New.
	(gomp_new_team): Recycle last non-nested team if possible.
	(gomp_team_end): Move team work share list free lock destruction
	to...
	(free_team): ...here.
---
 libgomp/team.c | 50 +++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 37 insertions(+), 13 deletions(-)

diff --git a/libgomp/team.c b/libgomp/team.c
index b98b233..4525eaf 100644
--- a/libgomp/team.c
+++ b/libgomp/team.c
@@ -134,6 +134,25 @@ gomp_thread_start (void *xdata)
   return NULL;
 }
 
+static inline struct gomp_team *
+get_last_team (unsigned nthreads)
+{
+  struct gomp_thread *thr = gomp_thread ();
+  if (thr->ts.team == NULL)
+    {
+      struct gomp_thread_pool *pool = thr->thread_pool;
+      if (pool != NULL)
+	{
+	  struct gomp_team *last_team = pool->last_team;
+	  if (last_team != NULL && last_team->nthreads == nthreads)
+	    {
+	      pool->last_team = NULL;
+	      return last_team;
+	    }
+	}
+    }
+  return NULL;
+}
 
 /* Create a new team data structure.  */
 
@@ -141,18 +160,27 @@ struct gomp_team *
 gomp_new_team (unsigned nthreads)
 {
   struct gomp_team *team;
-  size_t size;
   int i;
 
-  size = sizeof (*team) + nthreads * (sizeof (team->ordered_release[0])
-				      + sizeof (team->implicit_task[0]));
-  team = gomp_malloc (size);
+  team = get_last_team (nthreads);
+  if (team == NULL)
+    {
+      size_t extra = sizeof (team->ordered_release[0])
+                     + sizeof (team->implicit_task[0]);
+      team = gomp_malloc (sizeof (*team) + nthreads * extra);
+
+#ifndef HAVE_SYNC_BUILTINS
+      gomp_mutex_init (&team->work_share_list_free_lock);
+#endif
+      gomp_barrier_init (&team->barrier, nthreads);
+      gomp_mutex_init (&team->task_lock);
+
+      team->nthreads = nthreads;
+    }
 
   team->work_share_chunk = 8;
 #ifdef HAVE_SYNC_BUILTINS
   team->single_count = 0;
-#else
-  gomp_mutex_init (&team->work_share_list_free_lock);
 #endif
   team->work_shares_to_free = &team->work_shares[0];
   gomp_init_work_share (&team->work_shares[0], false, nthreads);
@@ -163,14 +191,10 @@ gomp_new_team (unsigned nthreads)
     team->work_shares[i].next_free = &team->work_shares[i + 1];
   team->work_shares[i].next_free = NULL;
 
-  team->nthreads = nthreads;
-  gomp_barrier_init (&team->barrier, nthreads);
-
   gomp_sem_init (&team->master_release, 0);
   team->ordered_release = (void *) &team->implicit_task[nthreads];
   team->ordered_release[0] = &team->master_release;
 
-  gomp_mutex_init (&team->task_lock);
   team->task_queue = NULL;
   team->task_count = 0;
   team->task_queued_count = 0;
@@ -187,6 +211,9 @@ gomp_new_team (unsigned nthreads)
 static void
 free_team (struct gomp_team *team)
 {
+#ifndef HAVE_SYNC_BUILTINS
+  gomp_mutex_destroy (&team->work_share_list_free_lock);
+#endif
   gomp_barrier_destroy (&team->barrier);
   gomp_mutex_destroy (&team->task_lock);
   free (team);
@@ -895,9 +922,6 @@ gomp_team_end (void)
       while (ws != NULL);
     }
   gomp_sem_destroy (&team->master_release);
-#ifndef HAVE_SYNC_BUILTINS
-  gomp_mutex_destroy (&team->work_share_list_free_lock);
-#endif
 
   if (__builtin_expect (thr->ts.team != NULL, 0)
       || __builtin_expect (team->nthreads == 1, 0))
-- 
1.8.4.5
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