tag:blogger.com,1999:blog-3155908228127841862.post7078334409545452325..comments2023-06-28T10:04:44.463-06:00Comments on The Perils of Parallel: IT Departments Should NOT Fear MulticoreGreg Pfisterhttp://www.blogger.com/profile/12651996181651540140noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-3155908228127841862.post-48719701575951751962009-01-13T12:59:00.000-07:002009-01-13T12:59:00.000-07:00Igor,You're of course correct. If the rest of a sy...Igor,<BR/><BR/>You're of course correct. If the rest of a system -- memory bandwidth, IO -- isn't appropriately balanced with the CPU power for a workload set, you are toast. (That's a major issue with accelerators, by the way.)<BR/><BR/>However, developments like Intel's QuickPath and AMD's HyperTransport (plus Torrenza) well before it, as well as the coming PCI 2.0, indicate that vendors are aware of the issues and working to at least maintain the ratios we have now. There are workloads for which those aren't the right ratio, but for the most part things are OK.<BR/><BR/>About the blog: Yes, the drying up is temporary, even though it's run stupidly long. I ran into some overall issues of direction and intent. I'll post about that soon (I hope), along with other topics.Greg Pfisterhttps://www.blogger.com/profile/12651996181651540140noreply@blogger.comtag:blogger.com,1999:blog-3155908228127841862.post-27274313941930898782009-01-13T03:25:00.000-07:002009-01-13T03:25:00.000-07:00Greg, isn't there a concern that even server apps ...Greg, isn't there a concern that even server apps will ultimately be bound by resources of the machine (memory bandwidth, harddrive, network, ...) as opposed to the CPU itself?<BR/><BR/>Do you think that adding more cores to an 8-core web server would really increase the throughput?<BR/><BR/>On the other hand, I do agree that IT departments are less in trouble than regular users, simply because scaling is possible by adding more machines.<BR/><BR/>Igor<BR/><BR/>PS.: I noticed that your blog posts have dried up. I hope that's temporary because I enjoy reading your blog!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3155908228127841862.post-60210338433144210702008-10-16T20:16:00.000-06:002008-10-16T20:16:00.000-06:00I think you're spot on concerning why IT shouldn't...I think you're spot on concerning why IT shouldn't fear multicore. Where they fear it, it's because they've had innovation beaten out of them.Steve Rogershttps://www.blogger.com/profile/13966589909484994401noreply@blogger.com