| AMD CPU [message #29022] |
Wed, 30 January 2002 08:11  |
Richard Tyc
Messages: 69
Registered: June 1999
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Member |
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Are ther any implications with IDL when running on AMD CPU's (Duron, Athlon
etc) as compared to Intel ?
I thought it was a non issue, but the salesman at the computer store did
mention that some customers using "high end graphics and video editing
software" have experienced problems on AMD based PC's compared with Intel's.
Not sure where IDL fits here but thought I should ask about anyone's bad
experiences...
Thanks in advance
Rich
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| Re: AMD CPU [message #29100 is a reply to message #29022] |
Thu, 31 January 2002 09:54  |
Pavel A. Romashkin
Messages: 531
Registered: November 2000
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Senior Member |
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Rick Towler wrote:
>
> I disagree with Pavel in that I don't think you *need* to run win2k if you
> have an AMD processor. I have had no problems on AMD+win98+IDL
> configurations in the past. I think you would be much happier... but who
> are we to tell you how to run your life :)
Oh no, I didn't try to say you *have* to have W2K on an AMD machine. I
ran 98SE with IDL for a long time on that Duron. I had no problems at
all, except those generally experienced by 98 users. I can't say I had
more problems running IDL than anything else under 98.
I just tried to say that the upgrade to W2K showed me how much more
stable a Windows machine can be.
Pavel
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| Re: AMD CPU [message #29109 is a reply to message #29022] |
Wed, 30 January 2002 16:13 |
Robert Stockwell
Messages: 74
Registered: October 2001
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Member |
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Brian Jackel wrote:
> Hmmm, interesting.
>
> We just got a 1.6Ghz AMD and 1.2Ghz Pentium.
> Both running Windows2000 Professional. The
> STREAM benchmarks (http://www.cs.virginia.edu/stream/)
> claim that the AMD is *much* faster, while
> IDL timetests indicate only a slight advantage
> for the AMD.
>
> I wonder what's up with the Linux version?
>
> Brian
>
I'll check out the benchmarks and post more info
when I get a chance.
Cheers,
bob.
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| Re: AMD CPU [message #29111 is a reply to message #29022] |
Wed, 30 January 2002 13:32 |
Brian Jackel
Messages: 34
Registered: January 1998
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Member |
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Hmmm, interesting.
We just got a 1.6Ghz AMD and 1.2Ghz Pentium.
Both running Windows2000 Professional. The
STREAM benchmarks (http://www.cs.virginia.edu/stream/)
claim that the AMD is *much* faster, while
IDL timetests indicate only a slight advantage
for the AMD.
I wonder what's up with the Linux version?
Brian
Robert Stockwell wrote:
>
> My 1.4ghz AMD athlon runs Linux IDL much slower than my
> 1.2Ghz Pentium win2000 IDL.
> For instance, a process that takes ~7 minutes on the laptop
> takes ~15 on the athlon.
>
> I'm not sure why.
>
> Cheers,
> bob
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| Re: AMD CPU [message #29112 is a reply to message #29022] |
Wed, 30 January 2002 13:34 |
Rick Towler
Messages: 821
Registered: August 1998
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Senior Member |
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"Richard Tyc" wrote
> Huh. Win2K recomended.
Yes, very much so even if you are working with NT4. I used to run win98se
and when I started developing with objects IDL would lock up often. This
was due in part to poor memory management on my part but take the same
un-debugged program and work with it in IDL on win2k and you can happily
consume all of the free ram you like. IDL has only crashed on me maybe 2 or
3 times in 2 years of heavy daily use.
>> MAke sure you have W2K and it will be just fine.
I disagree with Pavel in that I don't think you *need* to run win2k if you
have an AMD processor. I have had no problems on AMD+win98+IDL
configurations in the past. I think you would be much happier... but who
are we to tell you how to run your life :)
>>> I thought it was a non issue, but the salesman at the computer store did
>>> mention that some customers using "high end graphics and video editing
>>> software" have experienced problems on AMD based PC's compared with
>>> Intel's.
The only thing that he could be referring to is the AGP cache coherency
problem where "The problem lies in conflicting accesses to a block of memory
by both the AGP processor and the CPU. The problem is more likely to occur
with a 4MB page size, I assume because the large page size makes it more
likely for the CPU's memory mappings to collide with the AGP processor's
ones." This problem was resolved a while back when AMD issued a registry
patch that forces windows to use 4k pages and a workaround has been floating
around for AMD based linux systems too.
http://www.theregister.co.uk/content/3/23749.html
-Rick
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| Re: AMD CPU [message #29113 is a reply to message #29022] |
Wed, 30 January 2002 13:15 |
Andrew Cool
Messages: 219
Registered: January 1996
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Senior Member |
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Richard Tyc wrote:
>
> Are ther any implications with IDL when running on AMD CPU's (Duron, Athlon
> etc) as compared to Intel ?
>
> I thought it was a non issue, but the salesman at the computer store did
> mention that some customers using "high end graphics and video editing
> software" have experienced problems on AMD based PC's compared with Intel's.
> Not sure where IDL fits here but thought I should ask about anyone's bad
> experiences...
>
> Thanks in advance
>
> Rich
Hi Rich,
I run IDL v5.5 at home on a XP1600 (1.4GHz) W2K machine with
no problems, using a GeForce2 400MX 64MB card.
As someone else said, it fairly smokes along.
The electronics tech here at work through whom I bought the system
says that it effectively matches an Intel P4 2GHz machine.
Your salesman is perhaps either pulling your leg, or living in the dim
dark past, or perhaps talking about some _really_ high end video stuff.
How many pimples did the kid/salesman have?
Andrew
------------------------------------------------------------ ---------
Andrew D. Cool .->-.
Electromagnetics & Propagation Group `-<-'
Surveillance Systems Division Transmitted on
Defence Science & Technology Organisation 100% recycled
PO Box 1500, Salisbury electrons
South Australia 5108
Phone : 061 8 8259 5740 Fax : 061 8 8259 6673
Email : andrew.cool@dsto.defence.gov.au
------------------------------------------------------------ ---------
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| Re: AMD CPU [message #29115 is a reply to message #29022] |
Wed, 30 January 2002 10:45 |
Robert Stockwell
Messages: 74
Registered: October 2001
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Member |
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My 1.4ghz AMD athlon runs Linux IDL much slower than my
1.2Ghz Pentium win2000 IDL.
For instance, a process that takes ~7 minutes on the laptop
takes ~15 on the athlon.
I'm not sure why.
Cheers,
bob
Richard Tyc wrote:
> Are ther any implications with IDL when running on AMD CPU's (Duron, Athlon
> etc) as compared to Intel ?
>
> I thought it was a non issue, but the salesman at the computer store did
> mention that some customers using "high end graphics and video editing
> software" have experienced problems on AMD based PC's compared with Intel's.
> Not sure where IDL fits here but thought I should ask about anyone's bad
> experiences...
>
> Thanks in advance
>
> Rich
>
>
>
>
>
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| Re: AMD CPU [message #29117 is a reply to message #29022] |
Wed, 30 January 2002 10:07 |
Richard Tyc
Messages: 69
Registered: June 1999
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Member |
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Huh. Win2K recomended.
I was hoping to stay with my Win98SE for a while longer. Is this an issue in
using the AMD Duron 1 Ghz CPU's ?
I am able to Run 5.4 on Win 98SE now on a Pentium II - 350 without problems
which I will be upgrading.....
Rich
Pavel Romashkin <pavel.romashkin@noaa.gov> wrote in message
news:a397vr$h0r$1@mwrns.noaa.gov...
> I am running 5.4 on an AMD Duron 750, with Radeon 32DDR video, W2kPro. It
is
> not really the highest end system, but IDL is really fast and I have not
> seen any problems at all. I think it is all in the OS. MAke sure you have
> W2K and it will be just fine.
> Pavel
>
>> I thought it was a non issue, but the salesman at the computer store did
>> mention that some customers using "high end graphics and video editing
>> software" have experienced problems on AMD based PC's compared with
> Intel's.
>> Not sure where IDL fits here but thought I should ask about anyone's bad
>> experiences...
>
>
>
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| Re: AMD CPU [message #29118 is a reply to message #29022] |
Wed, 30 January 2002 08:59 |
bgeer
Messages: 2
Registered: January 2002
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Junior Member |
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Craig Markwardt <craigmnet@cow.physics.wisc.edu> writes:
>"Richard Tyc" <richt@sbrc.umanitoba.ca> writes:
>> Are ther any implications with IDL when running on AMD CPU's (Duron, Athlon
>> etc) as compared to Intel ?
>>
>> I thought it was a non issue, but the salesman at the computer store did
>> mention that some customers using "high end graphics and video editing
>> software" have experienced problems on AMD based PC's compared with Intel's.
>> Not sure where IDL fits here but thought I should ask about anyone's bad
>> experiences...
>We use IDL on an Athlon dual CPU system and it smokes! Floating point
>performance has been noted to be better on Athlons. [ After a bout of
>bad memory, ] we haven't noticed any problems at all.
I'm having no problems with 5.4 on a 1.2 gig SocketA Thunderbird. It
runs double precision FFT code significantly faster than on a 566MHz
Alpha.
--
<> Robert Geer & Donna Tomky | |||| We sure |||| <>
<> bgeer@xmission.com | == == find it == == <>
<> dtomky@xmission.com | == == enchanting == == <>
<> Albuquerque, NM USA | |||| here! |||| <>
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| Re: AMD CPU [message #29119 is a reply to message #29022] |
Wed, 30 January 2002 08:45 |
Pavel A. Romashkin
Messages: 531
Registered: November 2000
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Senior Member |
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I am running 5.4 on an AMD Duron 750, with Radeon 32DDR video, W2kPro. It is
not really the highest end system, but IDL is really fast and I have not
seen any problems at all. I think it is all in the OS. MAke sure you have
W2K and it will be just fine.
Pavel
> I thought it was a non issue, but the salesman at the computer store did
> mention that some customers using "high end graphics and video editing
> software" have experienced problems on AMD based PC's compared with
Intel's.
> Not sure where IDL fits here but thought I should ask about anyone's bad
> experiences...
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| Re: AMD CPU [message #29120 is a reply to message #29022] |
Wed, 30 January 2002 08:30 |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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"Richard Tyc" <richt@sbrc.umanitoba.ca> writes:
> Are ther any implications with IDL when running on AMD CPU's (Duron, Athlon
> etc) as compared to Intel ?
>
> I thought it was a non issue, but the salesman at the computer store did
> mention that some customers using "high end graphics and video editing
> software" have experienced problems on AMD based PC's compared with Intel's.
> Not sure where IDL fits here but thought I should ask about anyone's bad
> experiences...
We use IDL on an Athlon dual CPU system and it smokes! Floating point
performance has been noted to be better on Athlons. [ After a bout of
bad memory, ] we haven't noticed any problems at all.
Craig
--
------------------------------------------------------------ --------------
Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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