I have a Sempron 2800+ @ 2.0 Ghz. I won't be able to upgrade for at least 2 years. Im running SETI and EINSTEIN and SPINHENGE. One eistein@home workunit takes about 27 hours to complete. What I want to know is how fast do you guys with Q6600's etc. finish these work units. A seti workunit takes about 10 hours to complete.
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Hey, slow processor...
- Thread starter narreth
- Start date
I took my Sempy 2800 offline a couple of months ago. The cost/performance just wasn't worth it anymore. The run times sound just about right compared to yours.
While I don't have a Q6600, I do have a 6320 with a mild overclock.
It's currently pushing out two Einstein units every 8-9 hours using the "test" app. So 8 units per 24 period. Give or take an hour or two.
My P4 2.8ghz with HT is doing two Einsteins roughly every 30 hours. I may just have to break down and scrap it as well and go for a cheapo C2 upgrade. More WUs done with less $$$ spent on power.
While I don't have a Q6600, I do have a 6320 with a mild overclock.
It's currently pushing out two Einstein units every 8-9 hours using the "test" app. So 8 units per 24 period. Give or take an hour or two.
My P4 2.8ghz with HT is doing two Einsteins roughly every 30 hours. I may just have to break down and scrap it as well and go for a cheapo C2 upgrade. More WUs done with less $$$ spent on power.
GLeeM
Elite Member
Lots of us crunch with what we have.
We dream of upgrading, but until the money is there, we just have to use what we have.
There are many in our situation, narreth, you are not alone!
Keep crunching. I've seen many start out big and then quit. The one who continues racks up the points.
We dream of upgrading, but until the money is there, we just have to use what we have.
There are many in our situation, narreth, you are not alone!
Keep crunching. I've seen many start out big and then quit. The one who continues racks up the points.
Fardringle
Diamond Member
My home PC is a Sempron 2600+ running at 2.2Ghz and I won't be able to upgrade any time soon so I know how you feel in that department.
My BOINC benchmark is 2197/3662. At an even 2.0Ghz the system benchmarks at 1992/3350 which is just a bit higher than yours. What Frequency is your memory running at? My RAM is OK but no good for overclocking (it maxes out at about 208MHz even at CAS 3) so I had to turn down the memory ratio in the BIOS to 133 so that my 275MHz CPU bus equals 200 MHz for the RAM. Since it's at the stock speed setting I'm running it at CAS 2.5 and I think that may help a little in my benchmark score. If your memory can handle it and you aren't doing it already, try overclocking the RAM or running it at tighter timings to see if you can get some more performance out of the computer.
Also, is your Sempron a Socket 764 or 939 processor? If it's a 939 you might be able to get a cheap X2 processor like this one that would make a very significant difference in the speed of the system. Mine's a 764 so I don't have that option. 🙁
My BOINC benchmark is 2197/3662. At an even 2.0Ghz the system benchmarks at 1992/3350 which is just a bit higher than yours. What Frequency is your memory running at? My RAM is OK but no good for overclocking (it maxes out at about 208MHz even at CAS 3) so I had to turn down the memory ratio in the BIOS to 133 so that my 275MHz CPU bus equals 200 MHz for the RAM. Since it's at the stock speed setting I'm running it at CAS 2.5 and I think that may help a little in my benchmark score. If your memory can handle it and you aren't doing it already, try overclocking the RAM or running it at tighter timings to see if you can get some more performance out of the computer.
Also, is your Sempron a Socket 764 or 939 processor? If it's a 939 you might be able to get a cheap X2 processor like this one that would make a very significant difference in the speed of the system. Mine's a 764 so I don't have that option. 🙁
Assimilator1
Elite Member
754 you mean 😉
939 Semps are very rare ,only pre-built OEM rigs AFAIK.
Good to see you btw FD 🙂
Btw my 2nd PC has a S754 Semp 3100 @2.5GHz 🙂 (RAM's at 228MHz IIRC) ,afraid I don't know its SETI performance.I could benchmark it if you want?
My main rig has a Q6600 @3GHz & I was running SETI on it just over a month ago.I'll see if I can find out WU times (SETI site is offline atm).Though that's notoriously hard with BOINC SETI not to mention varying ARs.
Can't you overclock it more inccidently?
939 Semps are very rare ,only pre-built OEM rigs AFAIK.
Good to see you btw FD 🙂
You're un-employed & you spent $70 on a mouse?😕 ,should of saved it for an upgrade 😉
Btw my 2nd PC has a S754 Semp 3100 @2.5GHz 🙂 (RAM's at 228MHz IIRC) ,afraid I don't know its SETI performance.I could benchmark it if you want?
My main rig has a Q6600 @3GHz & I was running SETI on it just over a month ago.I'll see if I can find out WU times (SETI site is offline atm).Though that's notoriously hard with BOINC SETI not to mention varying ARs.
Can't you overclock it more inccidently?
waffleironhead
Diamond Member
i know how you feel op. I have a p4 3.0 and while it is no slouch, I do sometimes feel dual,tri,quad,oct-core envy. 🙁
Heres to future upgrades :beer::thumbsup:
Heres to future upgrades :beer::thumbsup:
Fardringle
Diamond Member
If the BOINC client is attached to multiple projects on the same computer, it will divide the computer's processing time between those projects even if there is only one CPU in the computer. If you're crazy like me, you can even have a computer attached to 50+ projects (57 on this machine right now). I don't actually let this computer work on most of them but I think it's funny to see the screen completely filled with projects. 🙂
Fardringle
Diamond Member
Yes. It's dividing the time between those two projects by switching between them. A dual core (or more) computer would do the same thing, it would just have multiple copies of each project running during that project's turn.
Assimilator1
Elite Member
Mind you don't exceed any WU deadlines doing it like that.
Overclocking won't kill your CPU as long as don't use excessive voltages (especially if you don't alter CPU voltages at all) & you watch loaded temperatures.
Remember that family of CPUs runs at higher clock rates anyway...... [edit] (thought you had a S754 variant which has a lower clock rate & thus more headroom for o/cing, still....), if you're running it at std clock speeds then you have the skt A Sempron ,your particular CPU IIRC is based on the Thoroughbred 'B' core ,these went up 2.167GHz (the XP 2700) from the factory & they were known for being a good overclocker (the lower models anyway).
See here for a CPU table
Many XP1700(1.47GHz) Tbred B core owners got their CPU upto 2.2GHz! 🙂 ,though my own one only went upto 2.03GHz without using silly voltages😛.
Anyway that's just FYI , I'm not saying you have to o/c but I thought you'd like to know that o/cing isn't anywhere near as harmful as the old myths would have you believe, & I thought you might appriecate some free power 😉. Without altering voltages at all you could quite likely run it at 2.1GHz ,maybe more if you have a good core.Not much but better than nothing.
Oh btw I only upgraded from Skt A rig 7mths ago, until then I was running an XP-M 2500(1.83) @2.5GHz ,that was a damn good overclocker that one 🙂 & is now in my sons PC.
.......ah fond memories of the long skt A era!😱
😉
Overclocking won't kill your CPU as long as don't use excessive voltages (especially if you don't alter CPU voltages at all) & you watch loaded temperatures.
Remember that family of CPUs runs at higher clock rates anyway...... [edit] (thought you had a S754 variant which has a lower clock rate & thus more headroom for o/cing, still....), if you're running it at std clock speeds then you have the skt A Sempron ,your particular CPU IIRC is based on the Thoroughbred 'B' core ,these went up 2.167GHz (the XP 2700) from the factory & they were known for being a good overclocker (the lower models anyway).
See here for a CPU table
Many XP1700(1.47GHz) Tbred B core owners got their CPU upto 2.2GHz! 🙂 ,though my own one only went upto 2.03GHz without using silly voltages😛.
Anyway that's just FYI , I'm not saying you have to o/c but I thought you'd like to know that o/cing isn't anywhere near as harmful as the old myths would have you believe, & I thought you might appriecate some free power 😉. Without altering voltages at all you could quite likely run it at 2.1GHz ,maybe more if you have a good core.Not much but better than nothing.
Oh btw I only upgraded from Skt A rig 7mths ago, until then I was running an XP-M 2500(1.83) @2.5GHz ,that was a damn good overclocker that one 🙂 & is now in my sons PC.
.......ah fond memories of the long skt A era!😱
😉
Alyx
Golden Member
Your CPU makes my server cry a little. Its only a 2200+... ;-)
And my Q6600@3.6 equates to this.
1/30/2008 12:53:45 AM||Benchmark results:
1/30/2008 12:53:45 AM|| Number of CPUs: 4
1/30/2008 12:53:45 AM|| 3437 floating point MIPS (Whetstone) per CPU
1/30/2008 12:53:45 AM|| 7880 integer MIPS (Dhrystone) per CPU
So floating score is 13748
and integer is 31520.
Assimilator1
Elite Member
No probs 🙂
Btw it sounds like your RAM is running below spec ,usually DDR RAM at the most runs with 3-3-3 timings regardless of its rated speed.
Also with skt A it is better to run the RAM at the same speed as the FSB as it reduces chipset memory related latencies.It might then be possible to run the RAM at lower timings still.
e.g I used to run my mixture of DDR 333/400 Crucial RAM at the FSB speed of 178MHz & set the RAM timings to 2.5-2-2.Though not all RAM will manage this.
What speed & make RAM have you got?
Btw it sounds like your RAM is running below spec ,usually DDR RAM at the most runs with 3-3-3 timings regardless of its rated speed.
Also with skt A it is better to run the RAM at the same speed as the FSB as it reduces chipset memory related latencies.It might then be possible to run the RAM at lower timings still.
e.g I used to run my mixture of DDR 333/400 Crucial RAM at the FSB speed of 178MHz & set the RAM timings to 2.5-2-2.Though not all RAM will manage this.
What speed & make RAM have you got?
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