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I want to go faster in (SETI) - 2

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  • I want to go faster in (SETI) - 2

    I must be doing something very wrong. I have a PIII 600E overclocked to 800MHz and 256MB of RAM at 133MHz CAS2.

    It takes between 6.5 and 7.5 hours to finish a WU. I have SETI@home version 2.04 running in the background. Nothing else is running except Rain and BlackIce, both of which use almost no resources.

    My motherboard is an ASUS P3V4X (latest VIA chipset) with the latest BIOS revision.

    Any suggestions to help me speed this up? Command lines? I am new to this forum.

    Thank you.



    [This message has been edited by Swing (edited 22 June 2000).]

  • #2
    If you've optimized the memory settings in your BIOS and are using the most recent BIOS version, that's probably as good as your going to get.

    My PIII 600 Klamath at 672 is quite a bit faster than my PIII 650E at 806 MHz. Apparently has to do with the 256 vs 512 KB cache sizes.

    Some versions of SETI run better for some people than others. Try the varions versions over 3 or 4 WUs and see what happens.

    Oh yes, there is hope in modification. Rags has an incredibly fast coppermine (WUs in ~2 hours). He is not inclined to reveal his method for optimizing his computer. Maybe someday he will and we may be able to take advantage of his experience. I haven't a clue.

    [This message has been edited by Brian R. (edited 22 June 2000).]

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    • #3
      Oh yeah, a coppermine which only needs 2hrs per WU. It aint possible....

      Mega
      K6-3 400Mhz@450Mhz
      G400 16MB, 192MB Ram and so on

      Comment


      • #4
        I have seen where he states he has run a 550E at 165 MHz fsb (908). This is outside my experience.

        Comment


        • #5
          Thank you for the replies. I guess I'm stuck with slow computations. If SETI@home code is optimized for 512K L-2 cache, I wish the code could be written for 256K, as most of small computers will end up with this amount.

          I doubt that Intel or AMD are going to give us back that much L-2 unless we pay a premium. Unfortunately, most small office and home computer programs do not require larger L-2 cache.

          Anyone have a cheap Coppermine Xeon?

          Comment


          • #6
            Swing, the code isn't optimized for a 512KB cache. The problem is that the data sets can approach 1MB according to the folks over at SETI@Home. They say that SETI runs fastest (clock for clock) on machines where the entire data set can fit into the L2 or L3 cache. So, you ideally need at least 1MB of L2 or L3 cache to get the best relative performance/MHz...

            Eric
            ABIT BF6, P3-600E FC-PGA @800, 128MB Crucial 7ns SDRAM, IBM Deskstar 10GXP, Matrox Millenium G400 DH 32MB, Sound Blaster Live!, D-LINK 10/100 Ethernet, Adaptec 2940UW, Plextor 32X CDROM, Plextor 4X/12X CD-R, SCSI Zip Drive, Motorola Cybersurfr Cable Modem

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            • #7
              Swing, try the cmd-line.
              The graphic version is for most people slower.
              Another thing, the cmd-line reports cpu-time, while the graphic-version reports the time it have been running. So it's very easy to get very long times with the graphic version.

              Comment


              • #8
                Mega,

                Mine does WU's between 2 and 3 hrs. Get yer FSB high, load into win2k, or win98 with the original GUI, run in background the whole time, disable the screen saver under display properties, disable unnecessary fonts/ drivers/ utilities. All of these useless things that load are put into your l1/l2 and add time to your WU's. FSB plays a mighty big role in WU times. Believe me you can do it if you tweak enough. I don't know what the exact thing I did to get my WU's down so well, but I kept tinkering and tinkering, and so far my wu's are flying by. Just so you know, I have a new install of win2k I have tried crunching with, and my WU's are around 5 hrs without the tweaking.

                Rags



                ------------------
                Partnership for an idiot free America

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                • #9
                  Swing, just as a point of reference, it takes me between 4:55 and 5:25 to process a WU. I'm using the command line version 2.0 with a PIII 600E @ 800 MHz, Asus P3V4X, and 256 MB CL2-rated PC133 RAM (timings set by SPD to 2-2-2).

                  Paul
                  paulcs@flashcom.net

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                  • #10
                    Rags - I noticed for a while, you were running WUs a little over an hour per WU. Did you try anything differently then? What programs are necessary to keep running in task manager? I would like to delete stuff, but there is so much crap going on...

                    Any advice?

                    Comment


                    • #11
                      I dunno about the times that were around 1 hr or so, maybe I just got a string of easy WU's. Just try disabling stuff out of your startup, use msconfig to select the stuff you don't want to use in win98. This way it's easy to turn it back on when you find out you don't really want to disable it.

                      Rags



                      ------------------
                      Partnership for an idiot free America

                      Comment


                      • #12
                        Excellent response Rags !

                        I really thought Mega-Phone would get his head shaved because of his (pretty annoying) statement ...

                        Anyway, my personal fastest WU (that I recognized) was 360 seconds ...
                        and that was on my former Cel333@500 !!!

                        So there are very vast differences in crunching times in each single WU.

                        Could you do me a favor, Rags ?
                        Boot into safe mode and try to crunch there ... I bet your times will be even lower, if it does run.
                        At least the cmd version runs flawless, don't know about the old GUI version though.



                        ------------------
                        Cheers,
                        Maggi

                        Despite my nickname causing confusion, I am not female ...

                        Celeron 566 @ 952MHz
                        Asus P2B-S @ 112MHz FSB
                        2x 128MB olden PC100 SDRAM
                        G400 32MB DH Vanilla @ 150.8/201.0MHz core/mem
                        Despite my nickname causing confusion, I am not female ...

                        ASRock Fatal1ty X79 Professional
                        Intel Core i7-3930K@4.3GHz
                        be quiet! Dark Rock Pro 2
                        4x 8GB G.Skill TridentX PC3-19200U@CR1
                        2x MSI N670GTX PE OC (SLI)
                        OCZ Vertex 4 256GB
                        4x2TB Seagate Barracuda Green 5900.3 (2x4TB RAID0)
                        Super Flower Golden Green Modular 800W
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                        LG DM2752D 27" 3D

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                        • #13
                          Heck !

                          What's your prob, Swing ?

                          You're on rank #20 in the lkist of Fastest seti@murcers Jun 15-22 ...

                          I know what you mean though ... gotta go faster no matter how fast you already are.



                          Cheers,
                          Maggi
                          Despite my nickname causing confusion, I am not female ...

                          ASRock Fatal1ty X79 Professional
                          Intel Core i7-3930K@4.3GHz
                          be quiet! Dark Rock Pro 2
                          4x 8GB G.Skill TridentX PC3-19200U@CR1
                          2x MSI N670GTX PE OC (SLI)
                          OCZ Vertex 4 256GB
                          4x2TB Seagate Barracuda Green 5900.3 (2x4TB RAID0)
                          Super Flower Golden Green Modular 800W
                          Nanoxia Deep Silence 1
                          LG BH10LS38
                          LG DM2752D 27" 3D

                          Comment


                          • #14
                            Hehe, my head is shaved Maggi on the left and the right side.

                            Thanks for the response Rags. Sorry for my "angry" post, it wasn't meant as Maggi understood it . If you say it runs so, than I believe it.
                            The said thing is that my good ol' K7M doesn't go over 112Mhz FSB stable. Of course I tried it with that setting, but it wasn't much faster (~10min). Also it seamed that games run slower with 7x112 than 8x100.
                            Probably the DDR-SDRAM will do it in the future.

                            Mega
                            K6-3 400Mhz@450Mhz
                            G400 16MB, 192MB Ram and so on

                            Comment


                            • #15
                              No prob Mega ...

                              but you must admit it sounded offensive, didn't it ?
                              Despite my nickname causing confusion, I am not female ...

                              ASRock Fatal1ty X79 Professional
                              Intel Core i7-3930K@4.3GHz
                              be quiet! Dark Rock Pro 2
                              4x 8GB G.Skill TridentX PC3-19200U@CR1
                              2x MSI N670GTX PE OC (SLI)
                              OCZ Vertex 4 256GB
                              4x2TB Seagate Barracuda Green 5900.3 (2x4TB RAID0)
                              Super Flower Golden Green Modular 800W
                              Nanoxia Deep Silence 1
                              LG BH10LS38
                              LG DM2752D 27" 3D

                              Comment

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