On Tuesday 10 January 2006 17:15, Anurag wrote: > Sometime on Tue, Jan 10, 2006 at 04:58:20PM +0000, Dinesh Joshi said: > > Is a gigabit backbone really necessary? > > It is. With a cluster of machines, network itself can become > biggest bottle neck. Clusters normally use Infiniband ethernet, not > even gigabit.
Network IS the bottleneck. Particularly in graphics applications. So let's say u have no cpu-mem bottleneck, a node will pump out 200Mbps of data. Next bottleneck is PCI then cpu-mem and finally cpu mips. So with a P4 mobo and 1Gbps network u can have 10 nodes max. -- rgds jtd -- rgds jtd -- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
