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From: anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups: comp.arch
Subject: Re: Short Vectors Versus Long Vectors
Date: Wed, 24 Apr 2024 09:28:06 GMT
Organization: Institut fuer Computersprachen, Technische Universitaet Wien
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Message-ID: <2024Apr24.112806@mips.complang.tuwien.ac.at>
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Lawrence D'Oliveiro <ldo@nz.invalid> writes:
>On Wed, 24 Apr 2024 06:16:58 GMT, Anton Ertl wrote:
>
>> For that kind of stuff you better use GPUs, which have memory systems
>> with more bandwidth.
>
>But with more limited memory, which is typically not upgradeable.

And yet, supercomputers these days often have lots of GPUs.  The
software crisis still is not yet there in supercomputing, so they
manage to do with explicit moving of data between the high-bandwidth
GPU memory and the lower-bandwidth bigger memory, just like in the
days of the Cray-1 (or was it the CDC-6600?), which has a fast memory
and a bigger slow memory.

- anton
-- 
'Anyone trying for "industrial quality" ISA should avoid undefined behavior.'
  Mitch Alsup, <c17fcd89-f024-40e7-a594-88a85ac10d20o@googlegroups.com>