Message boards :
Number crunching :
Stock vs Chickens
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Sirius B ![]() ![]() Send message Joined: 26 Dec 00 Posts: 24930 Credit: 3,081,182 RAC: 7 ![]() |
ups...a quick look in the datasheet shows this You guys are brilliant! My XP1600 has changed it's mind, it now prefers "Chicken". Many thanks! |
Sirius B ![]() ![]() Send message Joined: 26 Dec 00 Posts: 24930 Credit: 3,081,182 RAC: 7 ![]() |
[quote You guys are brilliant! My XP1600 has changed it's mind, it now prefers "Chicken". Many thanks![/quote] Oops... Just noticed my XP2000 throwing a "sickie" - repaired, it didn't like SSE2. All 3 now running great. Thanks |
![]() ![]() Send message Joined: 7 Feb 06 Posts: 1494 Credit: 194,148 RAC: 0 ![]() |
Seems like some AMD chips report as having SSE2 but they are not "fully" SSE2 compatible. I believe the problem is that they contain most, but not all, of the SSE2 instructions so some programs using SSE2 will run fine, while others fail depending on the specific SSE2 instructions called. Jim Some people plan their life out and look back at the wealth they've had. Others live life day by day and look back at the wealth of experiences and enjoyment they've had. |
OzzFan ![]() ![]() ![]() ![]() Send message Joined: 9 Apr 02 Posts: 15691 Credit: 84,761,841 RAC: 28 ![]() ![]() |
Oops... Just noticed my XP2000 throwing a "sickie" - repaired, it didn't like SSE2. Athlon Classic = MMX only Athlon XP = MMX & SSE Athlon 64 = MMX, SSE & SSE2* Athlon 64 X2 = MMX, SSE, SSE2 & SSE3 The problem is that your Athlon XP 2000 doesn't support SSE2. *There were some Athlon 64's (pre-X2) that support SSE3, but not many! It all depends on what core Athlon 64 you have as to whether is supports SSE3. |
Sirius B ![]() ![]() Send message Joined: 26 Dec 00 Posts: 24930 Credit: 3,081,182 RAC: 7 ![]() |
Oops... Just noticed my XP2000 throwing a "sickie" - repaired, it didn't like SSE2. Thanks Guys. Another great thread to save offline for future reference! |
Sirius B ![]() ![]() Send message Joined: 26 Dec 00 Posts: 24930 Credit: 3,081,182 RAC: 7 ![]() |
Oops... Just noticed my XP2000 throwing a "sickie" - repaired, it didn't like SSE2. Running on chickens for the past 2 days, no problems. No longer OXO cubes for my babies - They will be fed constantly on "Chicken Soup"!!!! |
![]() ![]() Send message Joined: 15 Dec 99 Posts: 707 Credit: 108,785,585 RAC: 0 ![]() |
Its nice to hear, that you have done the jump on the high speed train successfully. :-) Helli A loooong time ago: First Credits after SETI@home Restart |
Richard Haselgrove ![]() Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874 ![]() ![]() |
Its nice to hear, that you have done the jump on the high speed train successfully. :-) High speed trains are great, but sometimes it's a good idea to wait until they stop at the station before you try to jump on them. From my message 627773 down-thread: .... their dis-engagement can come back to haunt them in the months and years to come. Unfortunately, in this case it came back in 1 minute 5 seconds.... Since it's now got buried in the middle of the thread, can I remind people that there are some instructions in here somewhere, which can help prevent things going wrong? You can use the tools recommended while BOINC is running: if you do all your research and preparation beforehand, including copying the files, you can upgrade from stock to chicken and only lose about 15 seconds crunch-time. But if you get it wrong, you lose any work that you've done so far, and you're offline and crunchless for much longer if you have to do the research after the event. A little planning pays dividends in the long term. |
Sirius B ![]() ![]() Send message Joined: 26 Dec 00 Posts: 24930 Credit: 3,081,182 RAC: 7 ![]() |
Its nice to hear, that you have done the jump on the high speed train successfully. :-) Again, well stated Richard. I should have taken your post onboard & done things slowly. As everything worked A O K on my X2, I did not stop & think & installed on the other systems. THEY BROKE! Ah well...Live & Learn. I've re-saved this thread so that when I look back, I can see how stupid I was. Everything ok now, but when it comes to upgrade the "chickens", it will be done slowly, individually & carefully. Regards PJ |
W-K 666 ![]() Send message Joined: 18 May 99 Posts: 19692 Credit: 40,757,560 RAC: 67 ![]() ![]() |
looks like you just learned the 6 P's law; Planning and Preparation Prevent P*ss Poor Performance Andy |
Sirius B ![]() ![]() Send message Joined: 26 Dec 00 Posts: 24930 Credit: 3,081,182 RAC: 7 ![]() |
looks like you just learned the 6 P's law; Nice one Andy, can I have your permission to "borrow" your qoute & use it for my customers with regards to "spur of the moment upgrades"? Regards PJ |
W-K 666 ![]() Send message Joined: 18 May 99 Posts: 19692 Credit: 40,757,560 RAC: 67 ![]() ![]() |
looks like you just learned the 6 P's law; Use it as much as you want, I first came across it in the Army. Andy |
Sirius B ![]() ![]() Send message Joined: 26 Dec 00 Posts: 24930 Credit: 3,081,182 RAC: 7 ![]() |
looks like you just learned the 6 P's law; Many thanks. To be polite to my customers, I will have to change"P*ss" to "Pathetically" |
Idefix Send message Joined: 7 Sep 99 Posts: 154 Credit: 482,193 RAC: 0 ![]() |
Hi, Oh, and the main difference - the chicken apps are faster. Much faster. Unfortunately, not on my system ... ;-) Two new results: 5.27 stock app: result #595481563, AR 0.386386, CPU time: 26459 secs KWSN_2.4V_MB_SSE (the new one downloaded from Crunch3r's site): result #595481573, AR 0.386386, CPU time: 26863 secs Regards, Carsten |
![]() Send message Joined: 19 Mar 05 Posts: 551 Credit: 4,673,015 RAC: 0 ![]() |
Hi, This is due to the new stock app having sse built in (for PC's that support it) ;) BoB ![]() Do you Good Search for Seti@Home? http://www.goodsearch.com/?charityid=888957 Or Good Shop? http://www.goodshop.com/?charityid=888957 |
kittyman ![]() ![]() ![]() ![]() Send message Joined: 9 Jul 00 Posts: 51540 Credit: 1,018,363,574 RAC: 1,004 ![]() ![]() |
Hi, The Chicken is learning from the Rooster. Many of the non-platform-specific optimizations developed in the Chicken Coop have now been incorporated into the stock app. That is why the Chicken apps do not have the percentage of advantage that they once had over stock. But they are still faster in most cases on a given platform. "Time is simply the mechanism that keeps everything from happening all at once." ![]() |
Idefix Send message Joined: 7 Sep 99 Posts: 154 Credit: 482,193 RAC: 0 ![]() |
Hi, thank you BoB and msattler for your quick answers. This is due to the new stock app having sse built in (for PC's that support it) ;) Ah, thanks. That is new to me. That's the explanation I was looking for ... ;-) (I should have had a closer look to the result pages before ...) Many of the non-platform-specific optimizations developed in the Chicken Coop have now been incorporated into the stock app. That is why the Chicken apps do not have the percentage of advantage that they once had over stock. Yes, I know. But I was wondering why the use of the SSE instruction set doesn't give an advantage anymore. But now I have the answer ... :-) Regards, Carsten |
Josef W. Segur Send message Joined: 30 Oct 99 Posts: 4504 Credit: 1,414,761 RAC: 0 ![]() |
Hi, You have only a partial answer. Specific hand optimized SSE functions are common to both, that's true. In both cases those functions are in the group of routines which are tested at runtime and chosen based on accuracy and speed. In large part they are responsible for the increased speed of 5.27. However, the Chicken SSE app is built with the Intel Compiler version 10, the xK option which tells it to optimize the whole program for a PIII, plus generic optimization. Stock 5.27 is built with GCC 3.4.2 and limited to instructions which work on any 80386 or better x86 system, plus any generic optimizations the compiler can do within those limitations. Why the highly touted Intel compiler doesn't beat a two year old version of GCC is definitely a puzzle. Joe |
Sirius B ![]() ![]() Send message Joined: 26 Dec 00 Posts: 24930 Credit: 3,081,182 RAC: 7 ![]() |
Another helpful thread, must think of some more. Thanks guys. Question... Are the bionc preferences recognised across the board. i.e., if I change them on one system, will they affect the others? Regards PJ |
Odysseus ![]() Send message Joined: 26 Jul 99 Posts: 1808 Credit: 6,701,347 RAC: 6 ![]() |
Are the bionc preferences recognised across the board. i.e., if I change them on one system, will they affect the others? Preferences set at the website, yes, except on those systems running a recent BOINC client that have local preferences turned on, or those that are otherwise overriding the preferences. And, of course, those that are in a different “venue†from that for which the prefs were set. Your BOINC general preferences can be updated at any project website where you have hosts attached; they’ll eventually propagate to all your other projects. ![]() |
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