Re: [myrinet] Low bandwidth
Pete Wyckoff <[email protected]>
| Newsgroups | gmane.network.myrinet.general |
|---|---|
| Message-ID | <[email protected]> |
[email protected] said: > I just built up my first beowulf cluster with the latest PCI64B-2 > cards (PCI64C was available just a month later our order :-(). > Hosts are all DEC Alphastation 500/500 (alcor arch). OS is Linux > with kernel 2.2.19. Buses are 32bits @ 33Mhz so my guess is at least > a 100-130MBs of throughput. In fact, reality is well different... > gm_allsize gives me a maximum bandwith of 56MBs. What does gm_debug say for a DMA rate?