Looking on colfax direct, there is an 18 port QDR Mellanox switch at $3350 there is a single port QDR card for $522 3 metre cables for $48
Total of $12470 But PAY ATTENTION to the PCIe bus type on your motherboard (I know this the hard way...) - PCIe Base 3.0 compliant, 1.1 and 2.0 compatible I would say though that the above bundle could easily be re used when you get higher specification motherboards. Or as Andrew says spend that amount on a powerfule single motherboard ssytem. On 26 May 2014 13:23, John Hearns <hear...@googlemail.com> wrote: > Amjad, > I agree with what Andrew says - you can buy some very powerful single > motherboard systems these days. > > > I would suggest two things though: > > a) if you are planning to use this cluster for learning about MPI and > cluster interconnects why not get some gigabit ethernet cards plus a > gigabit switch? > > b) Look for second hand Infiniband cards and a switch on eBay. > Or look at Colfax Direct sell http://www.colfaxdirect.com > > I saw one of these rather nifty eigght port switches from Mellanox at > Cloud Expo in London: > > http://www.colfaxdirect.com/store/pc/viewPrd.asp?idproduct=601&idcategory=7 > > Sweet! > Or even easier the twelve port version: > > http://www.colfaxdirect.com/store/pc/viewPrd.asp?idproduct=1819&idcategory=7 > > > > > > > On 26 May 2014 12:58, Andrew Holway <andrew.hol...@gmail.com> wrote: > >> Hi, >> >> This cluster is now a little bit ancient. I have a feeling that, for the >> price of upgrading your network to Infiniband (around $10000 for QDR), you >> could buy a single, dual socket server that will be more powerful. The pcie >> bus on those systems is PCIe x8 Gen1 which would halve the speed anyway. >> You could *maybe* find old DDR IB on ebay or similar. >> >> What kind of application are you running on the cluster? is it connected >> to any kind of storage system? >> >> Thanks, >> >> Andrew >> >> >> >> On 26 May 2014 11:50, amjad ali <amja...@gmail.com> wrote: >> >>> Dear All, >>> >>> We have a small cluster of 16 nodes (single socket) with Intel S3210SH >>> motherboards. Does it fully support to connect these nodes with infiniband >>> switch and also installing the relevant iniband host adapter/interface >>> cards? >>> >>> Is it worth to add such an high speed interconnect for such a general >>> purpose cluster? >>> >>> If there is no support possible with infiniband then can we plan for any >>> other high speed interconnect technology like Myrinet, Quadrics etc. >>> >>> Regards, >>> Amjad Ali >>> >>> >>> >>> _______________________________________________ >>> Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing >>> To change your subscription (digest mode or unsubscribe) visit >>> http://www.beowulf.org/mailman/listinfo/beowulf >>> >>> >> >> _______________________________________________ >> Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing >> To change your subscription (digest mode or unsubscribe) visit >> http://www.beowulf.org/mailman/listinfo/beowulf >> >> >
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