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Some Notes about Hyper-Threading
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Sedat Canbaz



Joined: 09 Mar 2006
Posts: 1385
Location: Antalya/Turkey
PostPost subject: Re: Some Notes about Hyper-Threading    Posted: Sat Dec 17, 2011 12:09 am Reply to topic Reply with quote
bob wrote:
Sedat Canbaz wrote:
Dear Robert,

Btw,do you plan to release a new a well-optimized Crafty version which to support many cores

For example,the current available Crafty versions are up to 8 cores,thats why i paused Crafty 22.8 Benchmarks,due to it supports up to 8 cores

And as far as i know,there are some Crafty compilers,which support more than 8 cores,but unfortunately,theirs MP scaling are not very good...
I mean the chess benchmarks by Crafty are not performing quite good at 12 CPUs or higher CPUs...

In other words,its will be great if you release a new Crafty version which to support to many cores and later maybe i can resume my benchmarks with your great engine !

Best,
Sedat


Crafty supports any number of cores. It is up to the person that compiles it as to what limit they want to use. I run on ICC all the time using 12 cores, and have tested up to 64 cores... There's no limit within the software, just the compile-time option "CPUS=n". Probably everyone should use N of at least 16 today, at a minimum...


As i mentioned before, i have Crafty compilers,which support more than 8 cores,but i noticed that Crafty's MP benchmarks (as far as i remember with 12 cores)did not not perform quite well...there were misunderstanding benchmark results...

Actually Crafty 22.8 up to 8 cores is a great benchmarking tool...
But with more cores,i think it needs update-optimizing


Best,
Sedat
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Subject Author Date/Time
Some Notes about Hyper-Threading Sedat Canbaz Fri Dec 09, 2011 3:50 pm
      Re: Some Notes about Hyper-Threading Ernest Bonnem Sat Dec 10, 2011 12:31 am
            Re: Some Notes about Hyper-Threading Sedat Canbaz Sat Dec 10, 2011 2:43 am
                  Re: Some Notes about Hyper-Threading Robert Hyatt Sat Dec 10, 2011 4:06 pm
                        Re: Some Notes about Hyper-Threading enrico fagiuoli Sat Dec 10, 2011 11:26 pm
                        Re: Some Notes about Hyper-Threading Ernest Bonnem Mon Dec 12, 2011 8:07 pm
                        Re: Some Notes about Hyper-Threading H.G.Muller Tue Jun 26, 2012 4:30 pm
                              Re: Some Notes about Hyper-Threading Daniel Shawul Tue Jun 26, 2012 11:35 pm
                                    Re: Some Notes about Hyper-Threading H.G.Muller Wed Jun 27, 2012 5:40 am
                                          Re: Some Notes about Hyper-Threading Daniel Shawul Wed Jun 27, 2012 10:23 am
                                                Re: Some Notes about Hyper-Threading H.G.Muller Wed Jun 27, 2012 10:57 am
                                                      Re: Some Notes about Hyper-Threading Daniel Shawul Wed Jun 27, 2012 11:33 am
                  Re: Some Notes about Hyper-Threading Ernest Bonnem Sun Dec 11, 2011 1:19 am
                        Re: Some Notes about Hyper-Threading M ANSARI Sun Dec 11, 2011 6:06 am
                              Re: Some Notes about Hyper-Threading Sedat Canbaz Mon Dec 12, 2011 11:14 am
                        Re: Some Notes about Hyper-Threading Sedat Canbaz Sun Dec 11, 2011 8:31 am
                              Re: Some Notes about Hyper-Threading Ernest Bonnem Sun Dec 11, 2011 6:00 pm
                                    Re: Some Notes about Hyper-Threading Vincent Diepeveen Sun Dec 11, 2011 7:12 pm
                                          Re: Some Notes about Hyper-Threading Vincent Diepeveen Sun Dec 11, 2011 7:35 pm
                                                Re: Some Notes about Hyper-Threading Sedat Canbaz Mon Dec 12, 2011 2:03 am
                                                      Re: Some Notes about Hyper-Threading Vincent Lejeune Mon Dec 12, 2011 8:46 am
                                                            Re: Some Notes about Hyper-Threading Sedat Canbaz Mon Dec 12, 2011 12:04 pm
                                                                  Re: Some Notes about Hyper-Threading Vincent Lejeune Mon Dec 12, 2011 12:32 pm
                                    Re: Some Notes about Hyper-Threading Sedat Canbaz Mon Dec 12, 2011 2:37 am
                                          Re: Some Notes about Hyper-Threading Ernest Bonnem Mon Dec 12, 2011 5:24 pm
                                                Re: Some Notes about Hyper-Threading Sedat Canbaz Mon Dec 12, 2011 6:14 pm
                                                      Re: Some Notes about Hyper-Threading Robert Hyatt Mon Dec 12, 2011 6:51 pm
                                                            Re: Some Notes about Hyper-Threading Sedat Canbaz Mon Dec 12, 2011 7:27 pm
                                                                  Re: Some Notes about Hyper-Threading Robert Hyatt Tue Dec 13, 2011 5:01 pm
                                                      Re: Some Notes about Hyper-Threading Vincent Lejeune Tue Dec 13, 2011 2:10 am
                                                            Re: Some Notes about Hyper-Threading Sedat Canbaz Tue Dec 13, 2011 8:35 am
                                                            Re: Some Notes about Hyper-Threading Sujay Jagannathan Wed Jun 27, 2012 12:42 pm
                                                      Re: Some Notes about Hyper-Threading Vincent Lejeune Tue Jun 26, 2012 4:00 pm
                                                            Re: Some Notes about Hyper-Threading Sedat Canbaz Tue Jun 26, 2012 4:56 pm
                                                                  Re: Some Notes about Hyper-Threading Vincent Lejeune Wed Jun 27, 2012 7:45 am
                                                                  Re: Some Notes about Hyper-Threading Vincent Lejeune Wed Jun 27, 2012 10:22 pm
                                                Re: Some Notes about Hyper-Threading Sedat Canbaz Mon Dec 12, 2011 7:51 pm
      Re: Some Notes about Hyper-Threading Rodolfo Leoni Sat Dec 10, 2011 10:45 am
            Re: Some Notes about Hyper-Threading Sedat Canbaz Sat Dec 10, 2011 12:25 pm
                  Re: Some Notes about Hyper-Threading Albert Silver Sat Dec 10, 2011 12:33 pm
                        Re: Some Notes about Hyper-Threading Vincent Diepeveen Sat Dec 10, 2011 7:52 pm
                              Re: Some Notes about Hyper-Threading Sedat Canbaz Sat Dec 10, 2011 10:23 pm
                                    Re: Some Notes about Hyper-Threading Russell Murray Sat Dec 10, 2011 11:58 pm
                                          Re: Some Notes about Hyper-Threading Wylie Garvin Sun Dec 11, 2011 12:23 am
                                                Re: Some Notes about Hyper-Threading Robert Hyatt Sun Dec 11, 2011 12:38 am
                                    Re: Some Notes about Hyper-Threading Vincent Diepeveen Sun Dec 11, 2011 4:25 pm
                  Re: Some Notes about Hyper-Threading Robert Hyatt Sat Dec 10, 2011 4:04 pm
                        Re: Some Notes about Hyper-Threading Rodolfo Leoni Sat Dec 10, 2011 8:53 pm
                              Re: Some Notes about Hyper-Threading Robert Hyatt Sun Dec 11, 2011 12:36 am
                                    Re: Some Notes about Hyper-Threading Rodolfo Leoni Sun Dec 11, 2011 2:19 pm
                                          Re: Some Notes about Hyper-Threading Robert Hyatt Sun Dec 11, 2011 3:49 pm
                                    Re: Some Notes about Hyper-Threading Sujay Jagannathan Wed Jun 27, 2012 12:36 pm
                              Re: Some Notes about Hyper-Threading Robert Flesher Sun Dec 11, 2011 7:00 pm
                                    Re: Some Notes about Hyper-Threading Vincent Diepeveen Sun Dec 11, 2011 7:27 pm
                              Re: Some Notes about Hyper-Threading Lonnie Cook Wed Jun 27, 2012 12:44 pm
                        Re: Some Notes about Hyper-Threading Carl Bicknell Mon Dec 12, 2011 9:06 am
                              Re: Some Notes about Hyper-Threading Robert Hyatt Mon Dec 12, 2011 1:31 pm
                                    Re: Some Notes about Hyper-Threading Carl Bicknell Mon Dec 12, 2011 4:00 pm
                                          Re: Some Notes about Hyper-Threading Robert Hyatt Mon Dec 12, 2011 4:31 pm
                                                Re: Some Notes about Hyper-Threading Carl Bicknell Mon Dec 12, 2011 4:54 pm
                                                      Re: Some Notes about Hyper-Threading Robert Hyatt Mon Dec 12, 2011 6:42 pm
                                                            Re: Some Notes about Hyper-Threading Robert Flesher Tue Dec 13, 2011 4:25 am
                                    Re: Some Notes about Hyper-Threading Vincent Diepeveen Tue Dec 13, 2011 6:46 pm
                                          Re: Some Notes about Hyper-Threading Robert Hyatt Wed Dec 14, 2011 4:30 am
                                                Re: Some Notes about Hyper-Threading Sedat Canbaz Wed Dec 14, 2011 1:01 pm
                                                      Re: Some Notes about Hyper-Threading Robert Hyatt Wed Dec 14, 2011 7:35 pm
                                                            Re: Some Notes about Hyper-Threading Sedat Canbaz Wed Dec 14, 2011 8:22 pm
                                                      Re: Some Notes about Hyper-Threading Sedat Canbaz Wed Dec 14, 2011 7:39 pm
                                                            Re: Some Notes about Hyper-Threading Robert Hyatt Wed Dec 14, 2011 10:43 pm
                                                                  Re: Some Notes about Hyper-Threading Sedat Canbaz Thu Dec 15, 2011 2:21 am
                                                                        Re: Some Notes about Hyper-Threading Robert Hyatt Fri Dec 16, 2011 5:31 pm
                                                                              Re: Some Notes about Hyper-Threading Sedat Canbaz Fri Dec 16, 2011 6:55 pm
                                                                                    Re: Some Notes about Hyper-Threading Robert Hyatt Sat Dec 17, 2011 3:52 pm
                                                                  Re: Some Notes about Hyper-Threading Sedat Canbaz Thu Dec 15, 2011 2:34 am
                                                                        Re: Some Notes about Hyper-Threading Sedat Canbaz Thu Dec 15, 2011 3:13 am
                                                                              Re: Some Notes about Hyper-Threading Sedat Canbaz Fri Dec 16, 2011 11:27 am
                                                                                    Re: Some Notes about Hyper-Threading Sedat Canbaz Fri Dec 16, 2011 12:19 pm
                                                                                    Re: Some Notes about Hyper-Threading Robert Hyatt Fri Dec 16, 2011 11:25 pm
                                                                                          Re: Some Notes about Hyper-Threading Sedat Canbaz Sat Dec 17, 2011 12:26 am
                                                                                          Re: Some Notes about Hyper-Threading Sedat Canbaz Sat Dec 17, 2011 1:27 am
                                                                                          Re: Some Notes about Hyper-Threading Robert Hyatt Sat Dec 17, 2011 4:50 am
                                                                                          Re: Some Notes about Hyper-Threading Robert Hyatt Sat Dec 17, 2011 4:49 am
                                                                                          Re: Some Notes about Hyper-Threading Sedat Canbaz Sat Dec 17, 2011 10:11 am
                                                                                          Re: Some Notes about Hyper-Threading Robert Hyatt Sat Dec 17, 2011 3:54 pm
                                                                              Re: Some Notes about Hyper-Threading Robert Hyatt Fri Dec 16, 2011 11:23 pm
                                                                                    Re: Some Notes about Hyper-Threading Sedat Canbaz Sat Dec 17, 2011 12:09 am
                                                                                          Re: Some Notes about Hyper-Threading Robert Hyatt Sat Dec 17, 2011 4:52 am
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