[daip] [forwarded from Jeff Pedelty] My recent RH 7.0 experience and preliminary AM(00) for Pentium

[Patrick P. Murphy]

I think Eric got this, but wanted others to see it.  Some impressive
results!

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From: Jeff Pedelty <pedelty at ltpmail.gsfc.nasa.gov>
To: pmurphy at NRAO.EDU
Subject: My recent RH 7.0 experience and preliminary AM(00) for Pentium
Date: Mon, 26 Feb 2001 12:14:13 -0500
Message-Id: <3.0.3.32.20010226121413.0379a370 at ltpmail.gsfc.nasa.gov>

Pat - used baboon on my first sending, so am resending to pmurphy at nrao.edu.

>Eric, Pat,
>
>I wanted to send this just to you first as I had a couple of uncertainties.
> I just got a Dell Precision Workstation 330 with a 1.5GHz Pentium 4
>processor.  I have 384MB memory and 3 of the 15K RPM 18GB drives.  I
>striped 2 of the drives to make /usr and the other is /data.  I have AIPS
>disk 1 on /usr, disk 2 on /data, disk 3 back on /usr, and disk 4 back on
>/data.  The GSA price was ~$4800 (no monitor).
>
>I installed RH 7.0 out of the box, but had to get the latest openssh (as
>listed in bugzilla) to work in our environment.  I then did 'rpm -e' on all
>the packages that involved gcc-2.96 (don't have the list in my notes).  I
>then installed the gcc-2.95 packages from the Red Hat support pages.  All
>of 31DEC00 then built on /usr/local/aips without reported error, and I
>think the Y2K results are OK, but I wanted you to look them over:
>
>'IMAGE '         12.891      15.5342
>'IMBEAM'         14.299      16.5649
>'APCLN '          8.6961     16.0761
>'APRES '         15.3931     22.8872
>'IMCLN '          8.6849     16.226
>'VTESS '         10.3478     17.9358
>'VTESSC'         11.8384     17.1775
>'IMAGE '         0.00012   -0.000061   -0.000086
>'IMBEAM'          0           0      0.00000006
>'APCLN '         0.00012     0.00037      0.0176
>'APRES '      -0.0000057      0     -2.98023E-08
>'IMCLN '         0.00055    -0.00061      0.0173
>'VTESS '        -0.00049     0.00031    0.000036
>'VTESSC'        0.000061      0        -0.00002
>
>I left FDEFAULT.SH as is.  I set the AP memory size to 80MB.  BTW, the
>build took a bit over half an hour.  I didn't take notes, but the timestamp
>on AIPSUB.LIS is 20:37, INSTEP2.LOG is 20:54, and INSTEP4.LOG is 21:09.  I
>seem to recall it took a bit longer in ~'83 for our first 11/780
>installation at Minnesota...
>
>Y2K runs in the range 724 to 727 seconds, or AM(00)=55.0 to 55.2.  However,
>DDT takes 126 seconds, or AM(93)=31.7.  Is this consistent with your
>expectations?  I'd be happy to try other tests, AIPS data layouts, etc., or
>could send you any rpm -q listings.  I could also set up an NRAO account as
>I did years ago, if you want to play.
>
>Jeff
>
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