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Search: Posts Made By: ebx
Forum: Hardware 2004-07-25, 02:51
Replies: 18
Views: 2,004
Posted By ebx
I am more interested in the multiprocessor...

I am more interested in the multiprocessor capability of this processor.
It is widely speculated that Sempr0n is MP enabled. It is quite possible
judge from that we are not seeing higher graded MP....
Forum: Hardware 2004-06-25, 07:04
Replies: 39
Views: 2,351
Posted By ebx
Because supercomputers usually have a lot of CPU...

Because supercomputers usually have a lot of CPU while pc has 1. And when
you have thousands of cpus, it is not uncommon one or two of them arent
functioning.
Forum: Hardware 2004-06-24, 04:49
Replies: 39
Views: 2,351
Posted By ebx
The simplest form of overclock your cpu is to...

The simplest form of overclock your cpu is to adjust some bios
parameters. Most MB allow you to change FSB in a range. You
can inch the FSB up till the system becomes unstable(watch
your way out....
Forum: Hardware 2003-09-05, 03:43
Replies: 31
Views: 2,821
Posted By ebx
What if you load the xmm registers in the order...

What if you load the xmm registers in the order you need them in x8r_fft? Usually only load is bottleneck since you need the reasult to move forward. Store you can just post it.

Maybe it is the...
Forum: Software 2003-08-02, 06:36
Replies: 4
Views: 951
Posted By ebx
Isnt the next number after 2^32-1 zero(0) in 32...

Isnt the next number after 2^32-1 zero(0) in 32 bit notation?
Forum: Hardware 2003-07-22, 03:39
Replies: 35
Views: 2,633
Posted By ebx
I got a better compiler for a=x²+4x: //...

I got a better compiler for a=x²+4x:

// format is instruction dest, source
fpload r0, [x]
fpmov r1, r0 ;we need it later again
fpadd r0, [const_4] ;x+4
fpmul r1, r0 ; x²+4x
fpstore [a], r1
...
Forum: Lounge 2003-07-13, 19:36
Replies: 27
Views: 1,625
Posted By ebx
You need to read the problem and problem...

You need to read the problem and problem description more carefully.

The title of this thread is 'P4 SSE2 routine bug?'. That does sound like a software problem to me although it is not impossible...
Forum: Lounge 2003-07-13, 04:13
Replies: 27
Views: 1,625
Posted By ebx
Problem found with LLR. Sieved done by NewPGen.

Problem found with LLR. Sieved done by NewPGen.
Forum: Lounge 2003-07-13, 02:42
Replies: 27
Views: 1,625
Posted By ebx
I reproduced the same on my p4 2.26/Win2K and...

I reproduced the same on my p4 2.26/Win2K and XP1900+/WinXP.

Does anybody have a Opteron so we can see how AMD does SSE2?
Forum: Hardware 2003-07-13, 00:00
Replies: 35
Views: 2,633
Posted By ebx
If they did, it would not have been x86 any more.

If they did, it would not have been x86 any more.
Forum: Hardware 2003-07-11, 16:24
Replies: 35
Views: 2,633
Posted By ebx
So it is not really a x86-64 advantage. AMD is...

So it is not really a x86-64 advantage. AMD is merely using this chance to add more registers.

Yea IA32 is hard to improve. That is why intel defines an all new IA64 architecture.
Forum: Hardware 2003-07-11, 04:53
Replies: 35
Views: 2,633
Posted By ebx
Why would it need a 64 bit processor to fix the...

Why would it need a 64 bit processor to fix the shortage of registers?
Forum: Software 2003-07-09, 04:34
Replies: 44
Views: 3,915
Posted By ebx
XP1700+ overclocked to XP1900+. AMD...

XP1700+ overclocked to XP1900+.

AMD Athlon(tm) XP 1900+
CPU speed: 1607.76 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 256 KB
L1 cache line size: 64...
Forum: Hardware 2003-07-08, 19:52
Replies: 35
Views: 2,633
Posted By ebx
Freshly out: CPU with 64bit Architecture:...

Freshly out: CPU with 64bit Architecture: Evolution or Revolution?
Goes back to intel 4004 days.

http://www.xbitlabs.com/articles/cpu/display/64bit.html

...

The major question, however, is...
Forum: Hardware 2003-07-06, 18:47
Replies: 35
Views: 2,633
Posted By ebx
Market success and techinique success are...

Market success and techinique success are seperate things. There are examples that advanced tech didnt translated into market sucess, like the alpha chips. Opteron may sell well but that doesnt...
Forum: Hardware 2003-07-05, 08:37
Replies: 35
Views: 2,633
Posted By ebx
Are you sure? Itanium is argueably behind Power4...

Are you sure? Itanium is argueably behind Power4 and way ahead of Sun and other 64 bit cpu.

If Opteron is ever going to sink i64, it is becasue of its backward compatibility and maybe prices....
Forum: Lounge 2003-06-30, 03:25
Replies: 18
Views: 1,443
Posted By ebx
I dont know the exact number but I know my laptop...

I dont know the exact number but I know my laptop vent is ice cold when cpu is not busy. Once prime95 starts, the fan never stops blowing hot air.

It has a P4M 2.0G.
Forum: Puzzles 2003-06-07, 21:08
Replies: 28
Views: 3,162
Posted By ebx
Gee, nobody takes this as THE answer? ...

Gee, nobody takes this as THE answer?

Connecting the meet points at X and Y to the tip of the box at (1, 1) gives you both solutions. When the ledder length is 2*sqrt(2), the two solutions reduce...
Forum: Puzzles 2003-06-07, 16:57
Replies: 28
Views: 3,162
Posted By ebx
If you draw a circle centered at (-1, -1) with a...

If you draw a circle centered at (-1, -1) with a radius of 5, where will it touches the axies at the positive sides?
Forum: 3*2^n-1 Search 2003-05-18, 15:27
Replies: 9
Views: 1,686
Posted By ebx
When per itertion time is multipled by...

When per itertion time is multipled by millions(of iterations), round up error or observation error is multipled too.

Average time is the total time spent divided by number of candidate tested....
Forum: 3*2^n-1 Search 2003-05-18, 06:02
Replies: 9
Views: 1,686
Posted By ebx
Duh! Only if I know how to calculate *average*. ...

Duh! Only if I know how to calculate *average*.

It is more like (n^3 - m^3) / (n-m). Sigh!
Forum: 3*2^n-1 Search 2003-05-18, 05:36
Replies: 9
Views: 1,686
Posted By ebx
When to stop sieving?

Throw in some food for thought.

Ideally, we want to sieve a range to the point where
the sieving cost is the same as the average of testing
cost, although we know sieve is less predicatible than...
Forum: Hardware 2003-03-19, 22:12
Replies: 29
Views: 2,172
Posted By ebx
I make the same choice between the two. ...

I make the same choice between the two.

Intel started their run from the point they release Northwood. An adding bonus is Intel CPU runs a lot cooler. Sit them side by side, you hardly hear the...
Forum: Hardware 2003-03-19, 21:40
Replies: 13
Views: 1,362
Posted By ebx
If a 64 bit bus is enough to feed a CPU at say...

If a 64 bit bus is enough to feed a CPU at say 2.5GHz, 256bit wont help a whole lot. Remember they both run at cpu clock. I actually noted down the numbers of L1/L2 bandwidth for an xp1900 and a p4...
Forum: Hardware 2003-03-19, 21:02
Replies: 13
Views: 1,362
Posted By ebx
Not to forget Northwood came 'coincidently' with...

Not to forget Northwood came 'coincidently' with DDR supported chipsets.

Intel L1/L2 operates on different policy from that of AMD by the way.

I guess what I want to see is exact how much...
Showing results 1 to 25 of 101

 
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