Re: [OMPI users] ROMIO bug reading darrays

2014-05-08 Thread Richard Shaw
On 8 May 2014 16:59, Rob Latham wrote: > > Richard: may I add this test case to ROMIO's test suite? I'm always on > the hunt for small self-contained tests. > Please do. I'm glad it's being so useful - it seems to be hitting a surprising amount of bugs of different origins. It might be an idea

Re: [OMPI users] ROMIO bug reading darrays

2014-05-08 Thread George Bosilca
I read the MPICH trac ticket you pointed to and your analysis seems pertinent. The impact of my patch for “count = 0” has a similar outcome to yours: removed all references to the datatype if the count was zero, without looking fo the special markers. Let me try to come up with a fix. Thanks,

Re: [OMPI users] ROMIO bug reading darrays

2014-05-08 Thread Rob Latham
On 05/07/2014 11:36 AM, Rob Latham wrote: On 05/05/2014 09:20 PM, Richard Shaw wrote: Hello, I think I've come across a bug when using ROMIO to read in a 2D distributed array. I've attached a test case to this email. Thanks for the bug report and the test case. I've opened MPICH bug (bec

Re: [OMPI users] ROMIO bug reading darrays

2014-05-08 Thread Rob Latham
On 05/05/2014 09:20 PM, Richard Shaw wrote: Hello, I think I've come across a bug when using ROMIO to read in a 2D distributed array. I've attached a test case to this email. Richard: may I add this test case to ROMIO's test suite? I'm always on the hunt for small self-contained tests. I

Re: [OMPI users] ROMIO bug reading darrays

2014-05-08 Thread Rob Latham
On 05/07/2014 11:36 AM, Rob Latham wrote: On 05/05/2014 09:20 PM, Richard Shaw wrote: Hello, I think I've come across a bug when using ROMIO to read in a 2D distributed array. I've attached a test case to this email. Thanks for the bug report and the test case. I've opened MPICH bug (bec

Re: [OMPI users] ROMIO bug reading darrays

2014-05-08 Thread Richard Shaw
On 7 May 2014 16:25, Jeff Squyres (jsquyres) wrote: > > "Periodically". > > Hopefully, the fix will be small and we can just pull that one fix down to > OMPI. Okay, thanks for letting me know Jeff. Richard

Re: [OMPI users] ROMIO bug reading darrays

2014-05-08 Thread Richard Shaw
On 7 May 2014 17:48, Rob Latham wrote: > > Looks like I fixed that late last year. A slew of ">31 bit transfers" > fixes went into the MPICH-3.1 release. Slurping those changes, which are > individually small (using some _x versions of type-inquiry routines here, > some MPI_Count promotions the

Re: [OMPI users] ROMIO bug reading darrays

2014-05-07 Thread Rob Latham
On 05/07/2014 03:10 PM, Richard Shaw wrote: Thanks Rob. I'll keep track of it over there. How often do updated versions of ROMIO get pulled over from MPICH into OpenMPI? On a slightly related note, I think I heard that you had fixed the 32bit issues in ROMIO that were causing it to break when

Re: [OMPI users] ROMIO bug reading darrays

2014-05-07 Thread Jeff Squyres (jsquyres)
On May 7, 2014, at 4:10 PM, Richard Shaw wrote: > Thanks Rob. I'll keep track of it over there. How often do updated versions > of ROMIO get pulled over from MPICH into OpenMPI? "Periodically". Hopefully, the fix will be small and we can just pull that one fix down to OMPI. > On a slightly re

Re: [OMPI users] ROMIO bug reading darrays

2014-05-07 Thread Richard Shaw
Thanks Rob. I'll keep track of it over there. How often do updated versions of ROMIO get pulled over from MPICH into OpenMPI? On a slightly related note, I think I heard that you had fixed the 32bit issues in ROMIO that were causing it to break when reading more than 2 GB (i.e. http://www.open-mpi

Re: [OMPI users] ROMIO bug reading darrays

2014-05-07 Thread Rob Latham
On 05/05/2014 09:20 PM, Richard Shaw wrote: Hello, I think I've come across a bug when using ROMIO to read in a 2D distributed array. I've attached a test case to this email. Thanks for the bug report and the test case. I've opened MPICH bug (because this is ROMIO's fault, not OpenMPI's fa