Hello All!

What is the best "Bang for your Buck" in terms of CPU's for Prime crunchiness?

Is AVX-512 worth the extra heat considerations?

Or would it be better to go with less heat intensive options?

More cores vs more GHz?

I have questions! Please provide answers!
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Primes Found:
50*893^231310-1 (Top 5000)
20*634^476756-1 (Top 5000)
96*789^506568+1 (Top 5000)
225*370^322863-1 (Top 5000)
3293*82^335630-1 (Top 5000)
18431*82^467690-1 (Top 5000)
More primes on prestacki.com!

Thanks! I will keep that in mind for my next machine replacement.

Does having a large cache increase heat generation?
____________
Primes Found:
50*893^231310-1 (Top 5000)
20*634^476756-1 (Top 5000)
96*789^506568+1 (Top 5000)
225*370^322863-1 (Top 5000)
3293*82^335630-1 (Top 5000)
18431*82^467690-1 (Top 5000)
More primes on prestacki.com!

Thanks!

GenuineIntel Intel(R) Xeon(R) CPU E5-2698 v3 was my latest buy!

Good to know those stats are accurate!
____________
Primes Found:
50*893^231310-1 (Top 5000)
20*634^476756-1 (Top 5000)
96*789^506568+1 (Top 5000)
225*370^322863-1 (Top 5000)
3293*82^335630-1 (Top 5000)
18431*82^467690-1 (Top 5000)
More primes on prestacki.com!

Thanks!

GenuineIntel Intel(R) Xeon(R) CPU E5-2698 v3 was my latest buy!

Good to know those stats are accurate!

I bought a pre-built refurbished HP Z840 dual socket from a reseller.

Yes! It has been up and running for ~8 months now and has gotten ~63M credits.

A lot of the credits were from TF, but it definitely does CPU tasks well with dual E5-2698 v3 16-core CPUs.
____________
Primes Found:
50*893^231310-1 (Top 5000)
20*634^476756-1 (Top 5000)
96*789^506568+1 (Top 5000)
225*370^322863-1 (Top 5000)
3293*82^335630-1 (Top 5000)
18431*82^467690-1 (Top 5000)
More primes on prestacki.com!

I bought a pre-built refurbished HP Z840 dual socket from a reseller.

Yes! It has been up and running for ~8 months now and has gotten ~63M credits.

A lot of the credits were from TF, but it definitely does CPU tasks well with dual E5-2698 v3 16-core CPUs.

I bought a pre-built refurbished HP Z840 dual socket from a reseller.

Yes! It has been up and running for ~8 months now and has gotten ~63M credits.

A lot of the credits were from TF, but it definitely does CPU tasks well with dual E5-2698 v3 16-core CPUs.

You are doing GREAT with it!! Was it a local to you supplier or not? Either way can I have their name so I can check them out please? I am always looking for newer pc's to increase my crunching with less power than I am using now. I'm still using some older AMD 6 cores and some Intel I7-4??? series cpu's. I do have a few newer ones as well like an AMD Ryzen 9 5950X 16/32 core pc but the older Intel Xeon pc's I have do need to be replaced with pc's with more cpu cores.

I bought a pre-built refurbished HP Z840 dual socket from a reseller.

Yes! It has been up and running for ~8 months now and has gotten ~63M credits.

A lot of the credits were from TF, but it definitely does CPU tasks well with dual E5-2698 v3 16-core CPUs.

You are doing GREAT with it!! Was it a local to you supplier or not? Either way can I have their name so I can check them out please? I am always looking for newer pc's to increase my crunching with less power than I am using now. I'm still using some older AMD 6 cores and some Intel I7-4??? series cpu's. I do have a few newer ones as well like an AMD Ryzen 9 5950X 16/32 core pc but the older Intel Xeon pc's I have do need to be replaced with pc's with more cpu cores.

I wish it was a local supplier! I would definitely visit to pick it up directly.

Absolutely! The vendor is https://pcserverandparts.com/.

The only downside I have seen so far is they don't have a lot of post-commercial use Ryzens yet.

I bought a pre-built refurbished HP Z840 dual socket from a reseller.

Yes! It has been up and running for ~8 months now and has gotten ~63M credits.

A lot of the credits were from TF, but it definitely does CPU tasks well with dual E5-2698 v3 16-core CPUs.

You are doing GREAT with it!! Was it a local to you supplier or not? Either way can I have their name so I can check them out please? I am always looking for newer pc's to increase my crunching with less power than I am using now. I'm still using some older AMD 6 cores and some Intel I7-4??? series cpu's. I do have a few newer ones as well like an AMD Ryzen 9 5950X 16/32 core pc but the older Intel Xeon pc's I have do need to be replaced with pc's with more cpu cores.

I wish it was a local supplier! I would definitely visit to pick it up directly.

Absolutely! The vendor is https://pcserverandparts.com/.

The only downside I have seen so far is they don't have a lot of post-commercial use Ryzens yet.

Glad to hear I helped you!

I use to give each core a task, but I found that giving larger tasks more cores really helped with completing them in a timely fashion.

You can find information on how to do that with this post: https://srbase.my-firewall.org/sr5/forum_thread.php?id=6&postid=3795#3795

You can choose to give each workunit app a different value of cores to use and concurrent tasks to run.

I ended up giving all tasks 4 cores and limited the concurrent instances to (Number of cores/4)-1 so that the TF task would run on the GPU.
____________
Primes Found:
50*893^231310-1 (Top 5000)
20*634^476756-1 (Top 5000)
96*789^506568+1 (Top 5000)
225*370^322863-1 (Top 5000)
3293*82^335630-1 (Top 5000)
18431*82^467690-1 (Top 5000)
More primes on prestacki.com!

Glad to hear I helped you!

I use to give each core a task, but I found that giving larger tasks more cores really helped with completing them in a timely fashion.

You can find information on how to do that with this post: https://srbase.my-firewall.org/sr5/forum_thread.php?id=6&postid=3795#3795

You can choose to give each workunit app a different value of cores to use and concurrent tasks to run.

I ended up giving all tasks 4 cores and limited the concurrent instances to (Number of cores/4)-1 so that the TF task would run on the GPU.

Glad to hear I helped you!

I use to give each core a task, but I found that giving larger tasks more cores really helped with completing them in a timely fashion.

You can find information on how to do that with this post: https://srbase.my-firewall.org/sr5/forum_thread.php?id=6&postid=3795#3795

You can choose to give each workunit app a different value of cores to use and concurrent tasks to run.

I ended up giving all tasks 4 cores and limited the concurrent instances to (Number of cores/4)-1 so that the TF task would run on the GPU.

I do know about that but do you know about wuprop? wuprop.boinc-af.org/ is a boinc project that you one task per pc and it counts the hours you put in for each application at each boinc project, ie these are my SRBase hours since I started running it counting my SRBase hours:
SRBase Sierpinski / Riesel Base - long 92,062.18 215.62
SRBase Sierpinski / Riesel Base 60,467.38 0.00
SRBase TF 57,775.23 5.95
SRBase Riesel Base - short 55,398.58 0.00
SRBase Sierpinski / Riesel Base - long3 54,583.10 0.00
SRBase Sierpinski Base - short 52,399.33 0.00
SRBase Sierpinski / Riesel Base - long2 52,092.23 0.00
SRBase Sierpinski / Riesel Base - average2 51,083.50 0.00
SRBase Sierpinski Base 50,964.62 0.00
SRBase Riesel Base 50,888.92 0.00
SRBase Sierpinski / Riesel Base - average 50,772.85 0.00
SRBase Sierpinski / Riesel Base - short 43,424.43 0.00
SRBase Sierpinski / Riesel Base - average3 38,794.68 0.00

You can see the app and after that is my total number of hours in each app and the last numbers are the number of hours for the last 24 hours.

I will also let my signature come thru this time so if you have them turned off turn them on so you can see the total number of credits I have right now and why getting credits faster isn't my goal anymore. And YES that is REALLY 1.6 Trillion credits!!

mikey

Glad to hear I helped you!

I use to give each core a task, but I found that giving larger tasks more cores really helped with completing them in a timely fashion.

You can find information on how to do that with this post: https://srbase.my-firewall.org/sr5/forum_thread.php?id=6&postid=3795#3795

You can choose to give each workunit app a different value of cores to use and concurrent tasks to run.

I ended up giving all tasks 4 cores and limited the concurrent instances to (Number of cores/4)-1 so that the TF task would run on the GPU.

I do know about that but do you know about wuprop? wuprop.boinc-af.org/ is a boinc project that you one task per pc and it counts the hours you put in for each application at each boinc project, ie these are my SRBase hours since I started running it counting my SRBase hours:
SRBase Sierpinski / Riesel Base - long 92,062.18 215.62
SRBase Sierpinski / Riesel Base 60,467.38 0.00
SRBase TF 57,775.23 5.95
SRBase Riesel Base - short 55,398.58 0.00
SRBase Sierpinski / Riesel Base - long3 54,583.10 0.00
SRBase Sierpinski Base - short 52,399.33 0.00
SRBase Sierpinski / Riesel Base - long2 52,092.23 0.00
SRBase Sierpinski / Riesel Base - average2 51,083.50 0.00
SRBase Sierpinski Base 50,964.62 0.00
SRBase Riesel Base 50,888.92 0.00
SRBase Sierpinski / Riesel Base - average 50,772.85 0.00
SRBase Sierpinski / Riesel Base - short 43,424.43 0.00
SRBase Sierpinski / Riesel Base - average3 38,794.68 0.00

You can see the app and after that is my total number of hours in each app and the last numbers are the number of hours for the last 24 hours.

I will also let my signature come thru this time so if you have them turned off turn them on so you can see the total number of credits I have right now and why getting credits faster isn't my goal anymore. And YES that is REALLY 1.6 Trillion credits!!

mikey

That is a pretty neat project. Thanks for sharing!

That is impressive amount of time on SRbase and the 1.3 Billion in credits is not bad either! :)

What is your current goal?