>I don't know why AMD hasn't developed hyperthreading yet. Maybe someone else
>knows. Maybe Intel holds some patents.
AMD doesn't need hyperthreading as much as intel. Their pipeline is 5 to 10 instructions when a P4 is around 30 instructions. So on avereage the AMD chip gets 60% less pipeline stalls and 60% less overhead in refilling the pipeline when a stall does happen. In terms of total time wasted (and filled in with HT) this is probably the largest source because even with the best preditions it happens more often than the other sources that HT fills in.
In real numbers intel gains about 30% due to HT normally, AMD would probably gain less than 5%.
> But both Intel & AMD are said to be working on single chips that will
> contain two complete CPUs for late this year or early next year. That goes
> further than the P4 which only has duplication for some parts. Maybe AMD
> believes it has more to gain by concentrating its design force on this further
> development. I have seen reports that AMD might beat Intel into production.
IBM is doing the same ... there are rumors that we may see dual core, dual processor systems from Apple this year. Still only a rumor though ...
The Intel dual cores, at least to start, will have HT, so, the dual core with HT will look like 4 CPUs where AMD will have one chip that has two CPUs. In this case, the dual processor AMD system will have 4 physical processors and the Intel Dual will have 4 physical processors, with the appearance of 8 logical processors.
Hello everybody, With my
)
Hello everybody,
With my system, Einstein seems to always be around 6 1/2 hours.
einstein 4.79 H1_1308.9_1309.2_0.1_Tl03est02_4 06:32:10 100.00%
einstein 4.79 H1_1308.9_1309.0_0.1_Tl63est02_1 06:27:42 100.00%
einstein 4.79 H1J308.9_1309,1_0.1_Tl6_Test02_1 06:28:06 100.00%
einstein 4.79 HC1308.9_1309,2_0, CTl6_Test02_0 06:29:14 100.00%
einstein 4.79 HC1308.9_1309,3_0. CTl6_Test02_0 06:27:08 100.00%
einstein 4.79 H1J308.9_1309.4_0.1_Tl6_Test02_0 06:31:56 100.00%
einstein 4.79 H1J308.9_1309,0_0. CTl7_Test02_0 00:17:59 4.51% 06:21:14
mfoldB1254.24 t0227E_1_36878_3 02:18:49 100.00%
mfoldB1254,24 t0227E_1_42830_3 02:19:39 100.00%
mfoldB1254.24 t0227E_1_43000_2 02:16:15 100.00%
mfoldB1254.24 t0227E_1_43004_0 02:20:11 100.00%
mfoldB1254,24 t0227E_1_42820_3 02:19:01 100.00%
mfoldB1254,24 t0227E_1_34853_1 02:16:46 100.00%
mfoldB1254.24 t0227E_1_42753_3 02:19:35 100.00%
mfoldB1254.24 t0227E_1_42968_2 02:19:40 100.00%
mfoldB1254.24 t0227E_1_42989_1 02:22:19 100.00%
mfoldB1254.24 t0227E_l_42948_2 02:20:05 100.00%
mfoldB1254.24 t0227E_1_42494_5 02:16:22 100.00%
mfoldB1254.24 t0224E_1_93412_1 00:56:29 100.00%
setiathome 4.09 11 ja05ab ,27751.22881,823596,85_1 03:19:04 100.00%
setiathome 4.09 19dc04ab,27343.14545,873586,171_2 03:14:09 100.00%
.....................................................
AMD Athlon XP 2400+ 266 FSB Socket A - Thornton - OEM
Manufacturer AMD - Model AXDC2400DKV3C
CPU Rating 2000MHz
Socket Type SOCKET-A
Bus Frequency 266MHz
Multiplier 15
Core Voltage 1.65v
128 KB L1 Cache Size - 256 KB L2 Cache Size
.....................................................
Benchmarks and stats courtesy pcpitstop.com:
Processor Description:
AMD Athlon XP
Nominal Clock Speed 2000 MHz
Measured Clock Speed 2000 MHz
Speed Rating 5762 (?)
Main Board Description:
VIA Technologies, Inc. KT333CF-8235
BIOS Phoenix Technologies, LTD 6.00 PG 08/25/2003
System Board KT333CF-8235
Memory Configuration:
RAM installed 768 MB
Max RAM module size 32 MB
Memory Type 512+256,T16 DDR (budget ram)
Speed Rating 4955 MB/s
Athlon XP 2600+ 512 MB
)
Athlon XP 2600+
512 MB PC133
Einstein@Home WU crunch times average 6 hours, 15 minutes.
>I don't know why AMD hasn't
)
>I don't know why AMD hasn't developed hyperthreading yet. Maybe someone else
>knows. Maybe Intel holds some patents.
AMD doesn't need hyperthreading as much as intel. Their pipeline is 5 to 10 instructions when a P4 is around 30 instructions. So on avereage the AMD chip gets 60% less pipeline stalls and 60% less overhead in refilling the pipeline when a stall does happen. In terms of total time wasted (and filled in with HT) this is probably the largest source because even with the best preditions it happens more often than the other sources that HT fills in.
In real numbers intel gains about 30% due to HT normally, AMD would probably gain less than 5%.
There could be patent/copyright issues as well.
BOINC WIKI
BOINCing since 2002/12/8
> But both Intel & AMD are
)
> But both Intel & AMD are said to be working on single chips that will
> contain two complete CPUs for late this year or early next year. That goes
> further than the P4 which only has duplication for some parts. Maybe AMD
> believes it has more to gain by concentrating its design force on this further
> development. I have seen reports that AMD might beat Intel into production.
IBM is doing the same ... there are rumors that we may see dual core, dual processor systems from Apple this year. Still only a rumor though ...
The Intel dual cores, at least to start, will have HT, so, the dual core with HT will look like 4 CPUs where AMD will have one chip that has two CPUs. In this case, the dual processor AMD system will have 4 physical processors and the Intel Dual will have 4 physical processors, with the appearance of 8 logical processors.
i am getting around 5 hours
)
i am getting around 5 hours per WU on my 2.5ghz barton. around 7 hours on my 1.88ghz tbred b.
INTEL P4
)
INTEL P4 3066@3500
Benchmark results:
Number of CPUs: 2
1510 double MIPS (Whetstone) per CPU
1305 integer MIPS (Dhrystone) per CPU
Finished CPU benchmarks
does anyone know if there exists a list like this one ?
http://www.setigermany.de/statistiken/sg/benchmark/benchmark.htm
Certainly not an exact match,
)
Certainly not an exact match, but look here:
http://www.boincstats.com/stats/host_cpu_stats.php?pr=einstein&st=0&to=100∨=10
Einstein times: Power Mac G5
)
Einstein times:
Power Mac G5 @ 2X2.5 = 3.5 hrs (2 at a time)
iMac G5 @ 2 Ghz = 4.5 hrs
eMac G4 @ 800 Mhz = 13 hrs
SETI times:
Power Mac G5 @ 2X2.5 = 2.5 hrs (2 at a time)
iMac G5 @ 2 Ghz = 3 hrs
eMac G4 @ 800 Mhz = 10.5 hrs
iMac G3 @ 500 Mhz = 15.25 hrs
I takes 6:10 hours to
)
I takes 6:10 hours to crunch(E@H)with mi AMD Athlon(tm) XP 2800+,S@H takes 1.2h or 2 hours
Son of a BIT!
AMD X2 3800+ at stock speed
)
AMD X2 3800+ at stock speed with old 4x512MB DDR266CL2
About 22k per WU using both cores.