Walt,
generally speaking, that kind of things happen when you are using a
wireless network and/or a firewall.
so i recommend you first try to disconnect all your networks and see how
things get improved
Cheers,
Gilles
On 2/24/2016 5:08 AM, Walt Brainerd wrote:
I am running up-to-date cygwin on W10 on a 4x i5 processor,
including gcc 5.3.
I built libcaf_mpi.a provided by OpenCoarrays.
$ cat hello.f90
program hello
implicit none
print *, "Hello from", this_image(), &
"out of", num_images(), "images."
end program hello
I compiled the hello.f90 with
$ mpifort -fcoarray=lib hello.f90 libcaf_mpi.a
and ran it with
$ time mpirun -np 4 ./a
Hello from 1 out of 4 images.
Hello from 2 out of 4 images.
Hello from 3 out of 4 images.
Hello from 4 out of 4 images.
real 0m42.733s !!!!!!!!!!!!!!!!!!!!! <--------------------
user 0m0.201s
sys 0m0.934s
So I am getting this long startup delay. The same thing
happens with other coarray programs.
Any ideas? BTW, I know almost nothing about MPI :-(.
Thanks.
--
Walt Brainerd
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