Hi Andre
It would be very helpful if there were such a thing as a “hello-coarrays.fxx”
code for
those of us who do not have existing installations of mpi &c. aand limited time
to
so tests…
… experiments so far - below
thanks
Iain
> >> > > We like everyone to test the new caf_shmem library and report back any
> >> > > problems, like "does not compile", "does not run" or "hangs during
> >> > > execution”.
On x86_64 Darwin, (macOS)
1. we need a small patch to build:
diff --git a/libgfortran/caf/shmem/supervisor.c
b/libgfortran/caf/shmem/supervisor.c
index 9e5b794a23f..0e27d15ea52 100644
--- a/libgfortran/caf/shmem/supervisor.c
+++ b/libgfortran/caf/shmem/supervisor.c
@@ -37,6 +37,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If
not, see
#elif HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
+#include <sys/types.h> /* for kill() */
+#include <signal.h> /* for kill() */
#define GFORTRAN_ENV_NUM_IMAGES "GFORTRAN_NUM_IMAGES"
#define GFORTRAN_ENV_SHARED_MEMORY_SIZE “GFORTRAN_SHARED_MEMORY_SIZE”
2. If I try linking a trivial Fortran code thus:
gfortran /src-local/test/fortran/hello.f90 -o h -lcaf_shmem -fcoarray=lib
the exe then hangs - it looks like it might be deadlocked in startup code:
Call graph:
2166 Thread_408707810 DispatchQueue_1: com.apple.main-thread (serial)
+ 990 _pthread_cond_wait (in libsystem_pthread.dylib) + 152
[0x7ff818e29626]
+ ! 749 ??? (in <unknown binary>) [0x7ff8a93092f0]
+ ! 127 _pthread_cond_wait (in libsystem_pthread.dylib) + 147
[0x7ff818e29621]
+ ! 114 pthread_testcancel (in libsystem_pthread.dylib) + 1
[0x7ff818e2697f]
+ 630 _pthread_cond_wait (in libsystem_pthread.dylib) + 97,139,...
[0x7ff818e295ef,0x7ff818e29619,...]
+ 537 counter_barrier_wait (in h) + 67 [0x1044a8a93] counter_barrier.c:71
+ ! 271 DYLD-STUB$$pthread_cond_wait (in h) + 0 [0x1044aa8e6]
+ ! 154 counter_barrier_wait (in h) + 62 [0x1044a8a8e]
counter_barrier.c:71
+ ! 112 _pthread_cond_wait (in libsystem_pthread.dylib) + 1418,0
[0x7ff818e29b18,0x7ff818e2958e]
+ 9 _gfortran_caf_init (in h) + 47 [0x1044a52ff] shmem.c:91
+ 9 counter_barrier_wait (in h) + 48 [0x1044a8a80] counter_barrier.c:70
2166 Thread_408707823: com.apple.rosetta.exceptionserver
2166 ??? (in runtime) load address 0x7ff7fff8b000 + 0x13e58
[0x7ff7fff9ee58]
2166 ??? (in runtime) load address 0x7ff7fff8b000 + 0x123e0
[0x7ff7fff9d3e0]
2166 ??? (in runtime) load address 0x7ff7fff8b000 + 0x4944
[0x7ff7fff8f944]
