Michael Steeves wrote: > * Doug Hughes ([email protected]) [100210 17:03]: > >> Your specs are pretty basic. You could get almost ANYTHING to fill these >> needs. You don't mention whether the app is CPU or memory bound, or if >> it would benefit from more throughput or less latency. These little >> details can make a difference, but you probably don't know at this point. >> > > > R is memory intensive. It's not multithreaded, so you typically don't > need the cores. We've got a system with 16 cores and 64G of RAM, and R > jobs will routinely eat up all 64G of memory, and leave 15 CPUs > sitting idle, at least on the Linux side of things. > > That would tend to argue for possibly a single Istanbul architecture AMD machine with cheaper CPU and more DIMM slots. the 8MB dimms for Nehalem on most boards to get a relatively large amount of ram are really expensive.. But, you could also save even more by getting an older generation Harpertown processor and using FBDIMMS. You can get 64GB pretty inexpensively. (The DIMMS themselves have doubled in price in the last 2 years due to the fact that nobody makes them anymore, and you will not be able to get this config from Dell, but you could from a supermicro reseller)
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