Re: [OMPI users] Open MPI data transfer error

2010-11-05 Thread Eugene Loh
Debugging is not a straightforward task. Even posting the code doesn't necessarily help (since no one may be motivated to help or they can't reproduce the problem or...). You'll just have to try different things and see what works for you. Another option is to trace the MPI calls. If a proc

Re: [OMPI users] Open MPI data transfer error

2010-11-05 Thread Prentice Bisbal
Choose one A) Post only the relevant sections of the code. If you have syntax error, it should be in the Send and Receive calls, or one of the lines where the data is copied or read from the array/buffer/whatever that you're sending or receiving. B) Try reproducing your problem in a toy program t

Re: [OMPI users] Open MPI data transfer error

2010-11-05 Thread Jack Bryan
Thanks, But, my code is too long to be posted. dozens of files, thousands of lines. Do you have better ideas ? Any help is appreciated. Jack Nov. 5 2010 From: solarbik...@gmail.com List-Post: users@lists.open-mpi.org Date: Fri, 5 Nov 2010 11:20:57 -0700 To: us...@open-mpi.org Subject: Re: [OMP

Re: [OMPI users] Deprecated parameter: plm_rsh_agent

2010-11-05 Thread Joshua Bernstein
Thanks Samuel, I should have checked ompi_info myself. The FAQ on the website should probably be updated to reflect this function change. -Joshua Bernstein Software Development Manager Penguin Computing Samuel K. Gutierrez wrote: Hi Josh, I -think- the new name is orte_rsh_agent. At least

Re: [OMPI users] Deprecated parameter: plm_rsh_agent

2010-11-05 Thread Samuel K. Gutierrez
Hi Josh, I -think- the new name is orte_rsh_agent. At least according to ompi_info. $ ompi_info -a --parsable | grep orte_rsh_agent mca:orte:base:param:orte_rsh_agent:value:ssh : rsh mca:orte:base:param:orte_rsh_agent:data_source:default value mca:orte:base:param:orte_rsh_agent:status:writab

[OMPI users] Deprecated parameter: plm_rsh_agent

2010-11-05 Thread Joshua Bernstein
Hello All, When building the examples included with OpenMPI version 1.5 I see a message printed as follows: -- A deprecated MCA parameter value was specified in an MCA parameter file. Deprecated MCA parameters should be a

Re: [OMPI users] Open MPI data transfer error

2010-11-05 Thread David Zhang
As Prentice said, we can't help you without seeing your code. openMPI has stood many trials from many programmers, with many bugs ironed out. So typically it is unlikely openMPI is the source of your error. Without seeing your code the only logical conclusion is that something is wrong with your

Re: [OMPI users] Open MPI data transfer error

2010-11-05 Thread Prentice Bisbal
We can't help you with your coding problem without seeing your code. Jack Bryan wrote: > Thanks, > I have used "cout" in c++ to print the values of data. > > The sender sends correct data to correct receiver. > > But, receiver gets wrong data from correct sender. > > why ? > > thanks >

Re: [OMPI users] Open MPI data transfer error

2010-11-05 Thread Jack Bryan
Thanks, I have used "cout" in c++ to print the values of data. The sender sends correct data to correct receiver. But, receiver gets wrong data from correct sender. why ? thanks Nov. 5 2010 > Date: Fri, 5 Nov 2010 08:54:22 -0400 > From: prent...@ias.edu > To: us...@open-mpi.org > Subject: Re:

Re: [OMPI users] Open MPI data transfer error

2010-11-05 Thread Prentice Bisbal
Jack Bryan wrote: > > Hi, > > In my Open MPI program, one master sends data to 3 workers. > > Two workers can receive their data. > > But, the third worker can not get their data. > > Before sending data, the master sends a head information to each worker > receiver > so that each worker

[OMPI users] Open MPI data transfer error

2010-11-05 Thread Jack Bryan
Hi, In my Open MPI program, one master sends data to 3 workers. Two workers can receive their data. But, the third worker can not get their data. Before sending data, the master sends a head information to each worker receiver so that each worker knows what the following data package is. (su