[citation][nom]JAU[/nom]Hi MonsterCookie. Per the Intel rep, the MFSYS25 midplane is designed to handle at least 10GB/s per lane. If there would be any limitations due to high traffic, it would be at the Storage Module, however, having a second Storage module in place would take care of this limitation. Here's a pdf of another party's findings on running all six compute modules at the same time...http://www.principledtechnologies. [...] ex0208.pdfHope this helps. -julio[/citation]
Hi
first of all thanks for your helpful responses. I think in most topics on TH there is barely any communication between the author/reviewer and the readers.
Second thing: they ommit even in their PDF datasheet (at least i could not find it) the MPI latency, what i am really interested in, since in some (especially in our) applications there are several tiny packets send trough MPI, and the bandwith above 2-4 Gb/s is not an issue anymore, but the latency. If the MPI latency is not low enough, than the CPU-s will just sit idle in this nice case, and wayting for the data what to process.
I feel sorry for Intel to repeat myself: this product -besides beeng overpriced-, is not efficient (at least for our specific applications it would perform really poor). For the same price anyone with a bit of HW knowledge can build a cheaper cluster, which outperforms this wiht a notable margin, or buid the same, and save 20-30% of the price.