https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Add-the-recevied-data-to-existing-recieve-buffer-by-using-MPI/m-p/834048#M1580 Hi <BR />I am trying to execute a code on 2 proess (for begining) to calculate forces . i want to exchange these data such a way that when one process sends the data, it has to be added to the present value at the recieve buffer. I am not able to do it using the MPI communication commands.....is there a way to achieve this result?<BR />For eg : at a Point A in process 1 i have force 10N and i need to send the force to the other and add this 10N to the already present value of say 5N in recieve buffer...<BR />MPI_Reduce does it one process, but i want both of the process to do the same operation when they recive the forces from other.<BR />any information in this diretion will be very helpful.<BR /><BR />PS: if this is not the forum to discuss generic questions, please let me know where i need to post this.<BR /> Thu, 26 Aug 2010 16:10:00 GMT Sunny1 2010-08-26T16:10:00Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Add-the-recevied-data-to-existing-recieve-buffer-by-using-MPI/m-p/834048#M1580 Hi <BR />I am trying to execute a code on 2 proess (for begining) to calculate forces . i want to exchange these data such a way that when one process sends the data, it has to be added to the present value at the recieve buffer. I am not able to do it using the MPI communication commands.....is there a way to achieve this result?<BR />For eg : at a Point A in process 1 i have force 10N and i need to send the force to the other and add this 10N to the already present value of say 5N in recieve buffer...<BR />MPI_Reduce does it one process, but i want both of the process to do the same operation when they recive the forces from other.<BR />any information in this diretion will be very helpful.<BR /><BR />PS: if this is not the forum to discuss generic questions, please let me know where i need to post this.<BR /> Thu, 26 Aug 2010 16:10:00 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Add-the-recevied-data-to-existing-recieve-buffer-by-using-MPI/m-p/834048#M1580 Sunny1 2010-08-26T16:10:00Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Add-the-recevied-data-to-existing-recieve-buffer-by-using-MPI/m-p/834049#M1581 Hello Sunny,<BR /><BR />I'll move this to our Threading on Intel Parallel Architectures forum, since it's about parallel computing. Thanks for your question.<BR /><BR />==<BR />Aubrey W.<BR />Intel Software Network Support<BR /><BR /><BR />Edit: I think Clay answered your question at <A href="http://software.intel.com/en-us/forums/showthread.php?t=76958&amp;o=d&amp;s=lr" target="_blank">http://software.intel.com/en-us/forums/showthread.php?t=76958&amp;o=d&amp;s=lr</A>. But let me know if you still need assistance.<BR /> Fri, 03 Sep 2010 19:26:00 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Add-the-recevied-data-to-existing-recieve-buffer-by-using-MPI/m-p/834049#M1581 Aubrey_W_ 2010-09-03T19:26:00Z