Hi Bob, I used to perform computationally and I/O expensive Lanczos diagonalizations on Opteron machines writing and reading up to 4 GB of data at each step without problems. If you have enough RAM for filesystem cacheing (let us say, 4 GB) then you don't have to search for a particular I/O solution, reading and writing 0.5 GB of data should be fast. To further increase the I/O bandwidth you can set up an inexpensive RAID0 array of SATA disks and put at least 4GB of RAM on your system. - Jose Luis bob sandefur wrote:
Hi- Does anyone have any experience if a scsi dirve on a PCI card is faster than IDE with 9.2 SUSE? If so how much faster and what PCI cards and scsi drives are you using? I am reading and writing a 0.5 gb geological model multiple times and seem to be IO bound Thanx Robert (Bob) L. Sandefur PE Senior Geostatistician / Reserve Analyst CAM 200 Union Suite G-13 Lakewood, Co 80228
rsandefur@cam-llc.com
303 472-3240 (cell) <-best choice
303 716-1617 ext 14