Berkeley CSUA MOTD:Entry 22990
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5/24    

2001/11/9-10 [Computer/SW/Compilers] UID:22990 Activity:high
11/9    Do the 386 and 486 versions of SETI@home work on 386 or 486SX PCs
        without a 387 or 487SX?
        \_ "Back in the day", you had to either get a math co-proc or the
           software had to be written to use software emulation which meant
           it would run at 1/10th the speed or so for things that normally
           required a math co-proc.  What's the point of grinding out a unit
           per 2 months anyway?  By the time you get your unit in, they'll
           have already given up on your client/unit pair.  As far as seti
           goes, it depends totally on how they wrote it.  Try it.
           \_ I know it depends on how they wrote it, or more likely, what
              compiler switches they passed to the compiler.  But since I
              don't have a 386/486SX PC, I can't try it out myself.
              \_ Then why do you care?
                 \_ Okay, I'm just curious.
        \_ Surely you've got better things to do than provide horribly
           energy-inefficient computing power to SETI with negligible
           results.
           \_ Hey, at least it's not a 8088 or a Z80.
           \_ It was either inefficient cycles going to SETI or wasted idle
              cycles.  Which one is worse?
           \_ It was either inefficient cycles going to SETI, or wasted cycles
              running idle loop or drawing flying toasters.  Which one is
              worse?
                \_ Turn the fucking thing off, duh.  Just because it still
                   works doesn't mean it should be on.
                   \_ Dude, chill.  It seems unlikely that the wasted power
                      from an old machine is going to matter all that much
                      in the grand scheme of things.  Try decaf next time....
                   \_ What about the wasted idle cycles when you're typing in
                      your source code, or your compiler is reading a file from
                      the hard disk or over the network, or you're downloading
                      something from the web, or your debugger is waiting for
                      the target machine to hit a breakpoint?  I power on my
                      PC at work 8 or 9 hours a day, and at the end of the day
                      I usually find that only 10% of the CPU cycles went to
                      the ocmpilers/browser/OS etc, whereas the other 90% is
                      idle cycles which I use to run SETI@home.
2025/05/24 [General] UID:1000 Activity:popular
5/24    

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