>Eh computers are pretty cheap now. >i have a "server" that was Farcebook's 5 year old surplus, a 5100, with 24 >slots for DDR3 ECC ram, which i populated with 8GB each for a total of 192GB. >16GB sticks are available, but seemed overkill to me. Total cost ~$500. That >included the dual intel 2670 processors ... or 16 cores - which would have >cost extra from AZ. One can get i/o pretty fast too, as the builtin controller >can handle 12 drives (for which there are powered slots, with redundant PSUs). >Not nearly what is available on the AWS cloud ... but faster, and adequate for >many purposes. They are practically giving away 2TB drives now.
>Prolly this rig costs a lot less than Rauls laptop ... one does pay for >portability and convenience. Even a mere 2" rackmount is hard to cart. Server >bios, intel grphics and USB2 is not very consumer oriented either. But it >does keep one nice and warm in the winter:) >methinks the "cloud" providers want to make (a lot of) money, and will not >hint at other directions. ~greg http://krsnadas.org -- from: Raul Miller <[email protected]> to: Chat forum <[email protected]> date: Sep 9, 2018, 10:01 PM subject: Re: [Jchat] Vector Machines >Eh... 10 million rows, 200 columns, 8 byte data is about 2GB. My laptop with 64G ram seems adequate. Actually, a 16G laptop (using a macbook pro instead of a windows or linux rig) might even be adequate. >That 244GB machine does sound nice, though I imagine pumping data in and out seems like a minor chore. Raul -- from: Skip Cave <[email protected]> via gmail.com to: Chat forum <[email protected]> date: Sep 9, 2018, 4:29 PM subject: [Jchat] Vector Machines >From the R-Bloggers Blog: If your project is large (millions of rows, hundreds of columns) you really should rent an an Amazon EC2 r4.8xlarge (244 GiB RAM) machine for an hour for about $2.13 (quick setup instructions here http://www.win-vector.com/blog/2018/01/setting-up-rstudio-server-quickly-on-amazon-ec2/ ) and experience speed at scale. Skip Cave Cave Consulting LLC ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
