Re: [OMPI devel] 2.0.0rc4 Crash in MPI_File_write_all_end

2016-07-08 Thread Edgar Gabriel
I think I found the problem, I filed a pr towards master, and if that passes I will file a pr for the 2.x branch. Thanks! Edgar On 7/8/2016 1:14 PM, Eric Chamberland wrote: On 08/07/16 01:44 PM, Edgar Gabriel wrote: ok, but just to be able to construct a test case, basically what you are do

Re: [OMPI devel] 2.0.0rc4 Crash in MPI_File_write_all_end

2016-07-08 Thread Eric Chamberland
On 08/07/16 01:44 PM, Edgar Gabriel wrote: ok, but just to be able to construct a test case, basically what you are doing is MPI_File_write_all_begin (fh, NULL, 0, some datatype); MPI_File_write_all_end (fh, NULL, &status), is this correct? Yes, but with 2 processes: rank 0 writes somethi

Re: [OMPI devel] 2.0.0rc4 Crash in MPI_File_write_all_end

2016-07-08 Thread Edgar Gabriel
ok, but just to be able to construct a test case, basically what you are doing is MPI_File_write_all_begin (fh, NULL, 0, some datatype); MPI_File_write_all_end (fh, NULL, &status), is this correct? Thanks Edgar On 7/8/2016 12:19 PM, Eric Chamberland wrote: Hi, On 08/07/16 12:52 PM, Edgar

Re: [OMPI devel] 2.0.0rc4 Crash in MPI_File_write_all_end

2016-07-08 Thread Eric Chamberland
Hi, On 08/07/16 12:52 PM, Edgar Gabriel wrote: The default MPI I/O library has changed in the 2.x release to OMPIO for ok, I am now doing I/O on my own hard drive... but I can test over NFS easily. For Lustre, I will have to produce a reduced example out of our test suite... most file sy

Re: [OMPI devel] 2.0.0rc4 Crash in MPI_File_write_all_end

2016-07-08 Thread Edgar Gabriel
The default MPI I/O library has changed in the 2.x release to OMPIO for most file systems. I can look into that problem, any chance to get access to the testsuite that you mentioned? Thanks Edgar On 7/8/2016 11:32 AM, Eric Chamberland wrote: Hi, I am testing for the first time the 2.X relea

[OMPI devel] 2.0.0rc4 Crash in MPI_File_write_all_end

2016-07-08 Thread Eric Chamberland
Hi, I am testing for the first time the 2.X release candidate. I have a segmentation violation using MPI_File_write_all_end(MPI_File fh, const void *buf, MPI_Status *status) The "special" thing, may be that in the faulty test cases, there are processes that haven't written anything, so they