On Fri, Apr 06, 2007 at 04:57:18PM -0700, Jon Forrest wrote:
> For apps that
> don't need the extra address space, the benefits of
> the additional registers in x86-64 are nearly undone
> by the need to move more bits around,
Man, good thing you noticed. We'll have to change the default on our
co
Jon Forrest wrote:
Joe Landman wrote:
??? Flat memory is non-segmented by definition. Would you care to
point out the flat memory addressing mode on x86 which can access all
4GB ram? I am sure I missed it.
I'll be happy to withdraw this comment.
I stand corrected on this ... x386 and hi
[EMAIL PROTECTED]:~> cat hi.f90
program hi
print *,"hi"
end
[EMAIL PROTECTED]:~> pgf90 hi.f90
[EMAIL PROTECTED]:~> ./a.out
hi
[EMAIL PROTECTED]:~> ls -alF a.out
-rwxr-xr-x 1 landman users 2302794 Apr 8 21:38 a.out*
interesting - my x86_64 (pgf90 6.1-6) generates just 1.2 MB
Jon Forrest wrote:
Joe Landman wrote:
No. The extra registers make compiler optimization work better (lower
register pressure). The flat memory model (doing away with segmented
registers) simplifies addressing, and reduces the work of the processor
for every physical address calculation (no m
C.f. http://news.zdnet.com/2100-3513_22-6174266.html ... especially
quoting the eminently quotable RGB.
Obviously Microsoft declares victory, or at least success. What
marketing organization would admit failure (and keep their jobs)?
What I would like to see is evidence of uptake. Real numbers,
Hi Jon
Jon Forrest wrote:
> One thing I've noticed about 64-bit computing in general
> is that it's being oversold. The **only** reason
I disagree (with oversold).
> for running in 64-bit mode is if you need the additional
> address space. Indeed, for some apps this is critical and
No. The ext
We are planning to set up a linux cluster on trail basis in our
college.Since its merely a trail,we have been alloted PIII PCs with 128 MB
Ram and 40 GB HD on a 100 MBps LAN.All i want to know is,will this hardware
support a cluster? Moreover which distro/software to begin with? If this
trial su
add the additional difficulty of getting 64-bit drivers
for windows, at least. 64b-ness was never much of an issue for linux.
and what-not, I don't think it's worth messing with 64-bit
computing for apps that don't need the address space.
I think you underestimate the number of jobs that ca
At 11:39 PM 4/7/2007, Sandip Dev wrote:
We are planning to set up a linux cluster on trail basis in our
college.Since its merely a trail,we have been alloted PIII PCs with
128 MB Ram and 40 GB HD on a 100 MBps LAN.All i want to know
is,will this hardware support a cluster?
Yes. I built a
We are planning to set up a linux cluster on trail basis in our
college.Since its merely a trail,we have been alloted PIII PCs with 128 MB
Ram and 40 GB HD on a 100 MBps LAN.All i want to know is,will this hardware
support a cluster? Moreover which distro/software to begin with? If this
trial s
One thing I've noticed about 64-bit computing in general
is that it's being oversold. The **only** reason
for running in 64-bit mode is if you need the additional
address space. Indeed, for some apps this is critical and
64-bit computing solves a real problem. For apps that
don't need the extra ad
11 matches
Mail list logo
