On Wednesday, March 5, 2014 10:35:31 PM UTC+1, Dr David Kirkby wrote: > > > On 5 Mar 2014 20:17, "Jean-Pierre Flori" <jpf...@gmail.com <javascript:>> > wrote: > > > > > > > > On Wednesday, March 5, 2014 7:11:15 PM UTC+1, Christopher Swenson wrote: > >> > >> I'll be sure to ask what kind of CPUs they intend to donate. > > > > I did not do a thorough search, but it ssems the difference is not so > pronounced as it may have been. > > More cache (really more), but less cores for the M series. > > > http://followindex.com/data-centre/oracle-revs-up-sparc-m6-chip-for-seriously-big-iron/ > > > I found that hard to read. Perhaps it is because I have had a couple of > beers, but the sentences did not flow nicely. A little comparison chart > would not display at a reasonable size on my mobile phone. > > The fact it has data-centre in the URL suggests that the person writing it > may be looking at it from a perspective different from what is required > here. > > The T2 that William had was painfully slow with sage, yet several people > told me that the CPU was great in a data centre as it was much faster than > any Intel CPU and was low power. It got its speed from the fact it could > run hundreds of threads in parallel, but sage was never exploiting that > parallelism. > > I recall thinking at the time that sage needed an M series CPU. > > I think sage needs a CPU with a high clock speed, since sage is not going > to make effective use of a highly parallel slow CPU. > > It really needs specialist advice. The person recommending a machine or > offering a machine needs to be aware that the demands of sage are not > similar to a modern data centre. > > > From what I've read both T and M current cpus are base on the same core architecture and both have high clock speed (3.stg GHz). The main difference seem to be what is presented in the quoted table, but I might be wrong. And anyway the M series come in the supercluster m32 thingy size which are 2 meter high and are completely out of question (unless Sun is really generous and someone owns a nuclear plant in greenland).
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