Re: [Beowulf] Mailing list statistics

2009-05-23 Thread Kyle Spaans
On Fri, May 22, 2009 at 06:17:39AM -0700, Lux, James P wrote: > Some years ago, I processed some large chunk of archives to count number of > posts per source.. > > On 5/22/09 1:51 AM, "Bogdan Costescu" > wrote: > > On Tue, 19 May 2009, ky...@example.com wrote: > > > Is there any (semi) offic

Re: [Beowulf] MPI - time for packing, unpacking, creating a message...

2009-05-23 Thread Bruno Coutinho
If you are using Gigabit Ethernet with jumbo frames (9000 bytes for example): A will send 3 packets with 4000 bytes and B will send one of 9000 bytes and one of 7000 bytes. For the cpu B is better, because will generate one system call and A will generate three and as many high speed interconnects