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Profile Tom M
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Message 2041401 - Posted: 29 Mar 2020, 21:03:49 UTC - in response to Message 2041343.  

About how much system RAM is required per CPU job for Rosetta?


I have had upto 1.3GB on the regular task 4,08? under Linux.
There is a version called Mini-Rosetta which uses less.

You can tell the website how long you want the cpu to run a task and it will send you ones that run near that. When I had it set to 1 hour, I got tasks that ran about 1.5 hours or less.

I am experimenting with the default setting (8 hours) to see if I get more Coronavid19 tasks.

Tom
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Message 2041404 - Posted: 29 Mar 2020, 21:15:22 UTC

I was seeing if it would be worth it for me to run some Rosetta, generally I don't like CPU processing since it's much less efficient. Getting more RAM is no problem since my systems with the most CPU power run cheap DDR3 ram. changing from 32GB to 64GB isn't that expensive. maybe $50. but I have rather old CPUs (E5-2600v2) so maybe still not worth the electricity use. Does the RosettaCPU app use AVX?
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Message 2041414 - Posted: 29 Mar 2020, 21:49:52 UTC - in response to Message 2041404.  

... . Does the RosettaCPU app use AVX?

No it does not use AVX
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Profile Bill G Special Project $75 donor
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Message 2041426 - Posted: 29 Mar 2020, 22:18:37 UTC - in response to Message 2041401.  
Last modified: 29 Mar 2020, 22:19:16 UTC


You can tell the website how long you want the cpu to run a task and it will send you ones that run near that. When I had it set to 1 hour, I got tasks that ran about 1.5 hours or less.

I am experimenting with the default setting (8 hours) to see if I get more Coronavid19 tasks.

Tom

I am running at 4 hours and am getting about 50% COVID-19 tasks.

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Message 2041442 - Posted: 29 Mar 2020, 22:46:10 UTC

I just stole another 16GB of memory from other hosts to get 32GB installed in the daily driver which I added Rosetta to last night. Seeing up to 1.4GB per 8 hour task and generally around 1.1-1.2GB for most. Now I can run half my cores which was impossible on just 16GB.
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Message 2041490 - Posted: 30 Mar 2020, 1:22:00 UTC - in response to Message 2041442.  

I just stole another 16GB of memory from other hosts to get 32GB installed in the daily driver which I added Rosetta to last night. Seeing up to 1.4GB per 8 hour task and generally around 1.1-1.2GB for most. Now I can run half my cores which was impossible on just 16GB.

I had to run only 28 cores on my 32GB Ryzen as I was getting halts for lack of memory when I was running 29 cores. I am runniing my three GPUs reserving 2 core each so there was not extra at 29 cores .

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Message 2041533 - Posted: 30 Mar 2020, 7:10:42 UTC - in response to Message 2041404.  

I was seeing if it would be worth it for me to run some Rosetta, generally I don't like CPU processing since it's much less efficient.

The job that Rosetta does can't be done on GPUs, so CPU's are the most efficient way to get it done.
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Message 2041536 - Posted: 30 Mar 2020, 7:25:11 UTC - in response to Message 2041533.  

I was seeing if it would be worth it for me to run some Rosetta, generally I don't like CPU processing since it's much less efficient.

The job that Rosetta does can't be done on GPUs, so CPU's are the most efficient way to get it done.
It can be done of GPUs- they are actually putting some effots in to that- but they do't have the resources to make it a priority (at least according to a post on one of their forums).

And as far as efficiency goes, their CPU applications could really use some work. My APR here, around 37. At Rosetta it's 2.8 to 3 depending on the application.
Yeah, the maths operations they are using may have higher overheads, and the higher I/O with system RAM will also cause a performance hit. But those applications could use some serious optimisation work.
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Message 2041548 - Posted: 30 Mar 2020, 8:25:56 UTC - in response to Message 2041536.  

I wouldn't use APR as a measure of efficiency. R is 'rate' - yes, we can measure time, accurately. But P is 'processing' - how do we measure that? I think it comes from the project-supplied estimate of the number of floating point operations to be performed to complete the task, which is an arbitrary guess, at best.

Another of those values which are useful for comparison within a project, but can't be compared across projects.
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Message 2041554 - Posted: 30 Mar 2020, 8:53:52 UTC - in response to Message 2041548.  
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I wouldn't use APR as a measure of efficiency. R is 'rate' - yes, we can measure time, accurately. But P is 'processing' - how do we measure that? I think it comes from the project-supplied estimate of the number of floating point operations to be performed to complete the task, which is an arbitrary guess, at best.
FLOPs, the number of floating point operations performed per second.
Yes, different operations have different overheads, and different data sets will have different memory bounds (L1, L2, L3 or main memory etc) impacting on performance, but that is what it's about- the number of operations performed per second.
The efficiency of the Application (it's APR) is a large factor in how much Credit is awarded for processing a WU under Credit New.

One of the major points for BOINC using the Cobblestone (in it's intended un-mutilated form) was to provide reward for work done, and allow comparisons not just between systems on a project, but between projects. And the basis of it was the number of FLOPs performed.


Another of those values which are useful for comparison within a project, but can't be compared across projects.
And we can't use Credit thanks to Credit New (and each project doing their own thing as they see fit) even though that was one of the points of the creation of the Cobblestone for BOINC, and a stated goal of Credit New.

So with Credit New of no use, and APR of no use, then there is no way of making any sort of meaning full comparison between projects, even though so many of them quote the number FLOPs (supposedly) done as an indicator of their work output.




Edit- and thinking about it application APRs can't be compared between projects for applications that use Anonymous Platform because the Scheduler fiddles the FLOPS estimate of the Task to get the Task runtime estimates to work...

However, for stock applications the Application APR should be comparable between projects. Yes?
The number of FLOPs processed per second should be the number of FLOPs processed per second (assuming the estimate of the number of FLOPs to be processed is at least almost accurate as they did away with actual FLOPs counting...).
Grant
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Message 2041556 - Posted: 30 Mar 2020, 9:19:11 UTC - in response to Message 2041554.  

... even though so many of them quote the number FLOPs (supposedly) done as an indicator of their work output.
And so does BOINC itself - misleadingly. Nobody counts flops any more: any BOINC flops-figure you read has been reverse-calculated from the (arbitrary) credit awarded by the project concerned. I posted an analogy with the Zimbabwean Dollar being exchanged at parity with the US dollar, many years ago.
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Message 2041559 - Posted: 30 Mar 2020, 9:28:36 UTC - in response to Message 2041556.  

... even though so many of them quote the number FLOPs (supposedly) done as an indicator of their work output.
And so does BOINC itself - misleadingly. Nobody counts flops any more: any BOINC flops-figure you read has been reverse-calculated from the (arbitrary) credit awarded by the project concerned. I posted an analogy with the Zimbabwean Dollar being exchanged at parity with the US dollar, many years ago.
So they should just do away with Credit New & award Credit according to the original definition of the Cobblestone, and as long as the Estimted FLOPs for any given Task is close to the actual value then the Credit awarded for work done would be comparable within & between projects.
Yeah, i know. I'm dreaming.
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Message 2041566 - Posted: 30 Mar 2020, 10:37:22 UTC - in response to Message 2041401.  

About how much system RAM is required per CPU job for Rosetta?


I have had upto 1.3GB on the regular task 4,08? under Linux.
There is a version called Mini-Rosetta which uses less.

You can tell the website how long you want the cpu to run a task and it will send you ones that run near that. When I had it set to 1 hour, I got tasks that ran about 1.5 hours or less.

I am experimenting with the default setting (8 hours) to see if I get more Coronavid19 tasks.

Tom


When I run 8 hour tasks, they are now taking up to 2.3GB per task.

Tom
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Message 2041568 - Posted: 30 Mar 2020, 10:43:26 UTC - in response to Message 2041566.  

When I run 8 hour tasks, they are now taking up to 2.3GB per task.
Mine are still no more than 1.3GB (that i've seen so far).
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Message 2041569 - Posted: 30 Mar 2020, 10:53:04 UTC - in response to Message 2040087.  

Yes they don't have GPU apps unfortunately.
Please note nothing against Rosetta, i like the project and participate sometimes and wish to do that now.
But is a "relatively small" project who grows exponential in the last days, exactly maybe the Covid-19 crisis.


Some projects will let you pick the specific applications you want to run. So far I haven't been able to see where we can select the Corona-19 only.

Tom


Other Note: Rosetti@Home uses significantly more memory than Seti@Home. So you may get a "waiting for memory" message.

And I had to reduce available memory in BOINC to 75% when a user is active or the screen response became very, very sluggish.

Tom


Rosetta uses up to 2GB of RAM per CPU job. It adds up quickly if you are multithreaded....

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Message 2041570 - Posted: 30 Mar 2020, 10:54:31 UTC - in response to Message 2041343.  

About how much system RAM is required per CPU job for Rosetta?


Up to 2GB

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Message 2041652 - Posted: 30 Mar 2020, 16:47:47 UTC

Of course, last day of work issue and my BOINC runs 9 Seti tasks on CPU. What? Do these really take just 18 minutes per task? Wow. How far we got since P4 times.
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Message 2042590 - Posted: 2 Apr 2020, 18:14:13 UTC

What about SETI orphans teams on different projects?
That would bind together :)
SETI apps news
We're not gonna fight them. We're gonna transcend them.
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Message 2043268 - Posted: 6 Apr 2020, 5:39:18 UTC

I just created the team "SETI orphans" at Rosetta

Feel free to join. Much of their work at present is COVAD19.

Let's see how the team goes.
Dave

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Message 2043269 - Posted: 6 Apr 2020, 5:43:46 UTC

Yay!
I'm top of a team for RAC & Credit (probably only till the next person joins up).
Grant
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Message boards : Number crunching : SETI orphans


 
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