Richard,
> Well, both britten and haydn are single core, two processor
> systems. For
> SPEC2k6 runs the problem is that the 2gb ram of the machine are
> distributed over both numa nodes, so with the memory requirements of
> SPEC2k6 we always get inter-node memory traffic. Vangelis is a single
On 2/27/07, Menezes, Evandro <[EMAIL PROTECTED]> wrote:
Honza,
> Well, rather than unstable, they seems to be more memory layout
> sensitive I would say. (the differences are more or less reproducible,
> not completely random, but independent on the binary itself. I can't
> think of much else th
Nick,
> I thought that L2 caches on the Opteron communicated by I
> assume by your
> response the Opteron memory controller doesn't allow cache
> propagation,
> instead invalidates the cache entries read (assuming again the write
> entries are handled differently).
You're half right. The
NUMA support did strike me as a possible cause.
I thought that L2 caches on the Opteron communicated by I assume by your
response the Opteron memory controller doesn't allow cache propagation,
instead invalidates the cache entries read (assuming again the write
entries are handled differently
Honza,
> Well, rather than unstable, they seems to be more memory layout
> sensitive I would say. (the differences are more or less reproducible,
> not completely random, but independent on the binary itself. I can't
> think of much else than memory layout to cause it). I always wondered
> if th
> Jan Hubicka wrote:
>
> >I am running SPEC on both AMD and Intel machines quite commonly and I
> >must say that there seems to be difference in between those two. For P4
> >and Core I get results within something like 1-2 SPEC point (0.1%) of
> >overall
> >SPEC score, for Athlon I was never abl
Jan Hubicka wrote:
I am running SPEC on both AMD and Intel machines quite commonly and I
must say that there seems to be difference in between those two. For P4
and Core I get results within something like 1-2 SPEC point (0.1%) of overall
SPEC score, for Athlon I was never able to get so close,
Serge Belyshev wrote:
"Vladimir N. Makarov" <[EMAIL PROTECTED]> writes:
I run SPEC2000 several times per week and always look at 3 runs (to be
sure that is nothing wrong happened) but I never saw such big
"confidence" intervals (as I understand that is difference between max
and min of 3 ru
> "Vladimir N. Makarov" <[EMAIL PROTECTED]> writes:
>
> > I run SPEC2000 several times per week and always look at 3 runs (to be
> > sure that is nothing wrong happened) but I never saw such big
> > "confidence" intervals (as I understand that is difference between max
> > and min of 3 runs divide
"Vladimir N. Makarov" <[EMAIL PROTECTED]> writes:
> I run SPEC2000 several times per week and always look at 3 runs (to be
> sure that is nothing wrong happened) but I never saw such big
> "confidence" intervals (as I understand that is difference between max
> and min of 3 runs divided by the sco
Serge Belyshev wrote:
I have compared 4.1.2 release (r121943) with three revisions of 4.2 on spec2k
on an 2GHz AMD Athlon64 box (in 64bit mode), detailed results are below.
In short, current 4.2 performs just as good as 4.1 on this target
with the exception of huge 80% win on 178.galgel. All ot
On 2/25/07, Daniel Berlin <[EMAIL PROTECTED]> wrote:
On 2/24/07, Serge Belyshev <[EMAIL PROTECTED]> wrote:
> I have compared 4.1.2 release (r121943) with three revisions of 4.2 on spec2k
> on an 2GHz AMD Athlon64 box (in 64bit mode), detailed results are below.
>
> In short, current 4.2 performs
On 2/24/07, Serge Belyshev <[EMAIL PROTECTED]> wrote:
I have compared 4.1.2 release (r121943) with three revisions of 4.2 on spec2k
on an 2GHz AMD Athlon64 box (in 64bit mode), detailed results are below.
In short, current 4.2 performs just as good as 4.1 on this target
with the exception of hug
I have compared 4.1.2 release (r121943) with three revisions of 4.2 on spec2k
on an 2GHz AMD Athlon64 box (in 64bit mode), detailed results are below.
In short, current 4.2 performs just as good as 4.1 on this target
with the exception of huge 80% win on 178.galgel. All other difference
lies almos
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