1) Message boards : Number crunching : NVIDIA TESLA computing (Message 4016)
Posted 24 Jan 2020 by Jim1348
Post:
No, this is a CPU only project.
2) Message boards : Number crunching : WU completion times (Message 4006)
Posted 16 Jan 2020 by Jim1348
Post:
I would not be surprised if they are sending out different batches of work units. I think I have seen one hour on my machine at one point. Your results seem consistent though.

My own Ryzen 3000 series (3600 and 3700x) are maybe 30% faster than my Ryzen 2600 and 2700, but double the speed does not seem likely. Or maybe the large L3 cache of the 3900x does it? Some projects benefit from cache more than others.

I will look around at the other projects and see how they do. I may have to put together a 3900x. The high efficiency of that chip is remarkable too, and would work through the summer. Thanks for your input.
3) Message boards : Number crunching : WU completion times (Message 4001)
Posted 15 Jan 2020 by Jim1348
Post:
Thanks. That makes sense. It is always good to be thinking of the next upgrade, especially with Ryzens.

Intel is such a disappointment that I no longer bother to even look at their stuff. Let me know when they are back.
4) Message boards : Number crunching : WU completion times (Message 3999)
Posted 14 Jan 2020 by Jim1348
Post:
My 3900X with Ubuntu 19.04 currently needs just a bit more than an hour per WU.

That seems fast compared to my various Ryzens. Are you running on all cores?
Or else, I need a 3900x.
5) Message boards : Number crunching : No WU (Message 3980)
Posted 5 Jan 2020 by Jim1348
Post:
And this is not uncommon at universities. They are probably not back from semester break.
This upcoming week may show signs of life.
6) Message boards : News : Server update (Message 3959)
Posted 31 Dec 2019 by Jim1348
Post:
Actually I was asking why you cared that the tasks were temporarily out.

That is a strange way to ask.
7) Message boards : News : Server update (Message 3957)
Posted 31 Dec 2019 by Jim1348
Post:
Don't panic, there'll be more work shortly. Why do you need it available 100% of the time?

You seem to feel that you are telling me something. Go ahead and take the day off.
Happy New Year!
8) Message boards : News : Server update (Message 3954)
Posted 31 Dec 2019 by Jim1348
Post:
This is all very interesting, but there is no work. We won't have anything to export.
9) Message boards : News : Server update (Message 3942)
Posted 30 Dec 2019 by Jim1348
Post:
The UK (where I live) is leaving the EU. Yet I assume I'll continue to have to put up with this nonsense, aswell as that cookie consent rubbish on every single webpage I go to. Even Canadians and Americans (who are most definitely not in the EU) are affected by that. What gave the EU the right to screw up the whole world? The Americans ought to sue them!

Be my guest (I am in the U.S.). But even if they did not ask our consent, they would then have to ask if we are living in the EU. So it is one checkbox or another anyway. I can live with it, if that is as far as it goes. It might get worse.
10) Message boards : Number crunching : Registration problems (Message 3893)
Posted 17 Dec 2019 by Jim1348
Post:
Some people are having registration problems, so I will post this for them.
https://boinc.berkeley.edu/dev/forum_thread.php?id=13319
11) Message boards : Number crunching : No WUs right now? (Message 3881)
Posted 3 Dec 2019 by Jim1348
Post:
I have been getting "Project has no tasks available" since about 15:46 UTC (over 10 hours ago).
12) Message boards : Science : Huge Black Hole 'That Shouldn't Exist in Our Galaxy' Discovered by Scientists (Message 3879)
Posted 28 Nov 2019 by Jim1348
Post:
A large black hole that "should not exist" in the Milky Way has been discovered. The black hole, named LB-1, was detected after researchers found a star with an orbit that could only be explained if it had a "dark companion." This companion, they found, was a black hole with a mass 70 times that of the sun—far bigger than current models of stellar evolution allow for.

.............................
David Reitze, the director of the gravitational wave detector LIGO, who was not involved in the study, commented on the findings. "This discovery forces us to re-examine our models of how stellar-mass black holes form," he said in a statement. "This remarkable result, along with the LIGO-Virgo detections of binary black hole collisions during the past four years, really points towards a renaissance in our understanding of black hole astrophysics."

https://www.newsweek.com/black-hole-shouldnt-exist-milky-way-1474428
13) Message boards : Science : To Make Two Black Holes Collide, Try Three (Message 3803)
Posted 30 Sep 2019 by Jim1348
Post:
This was cited over at Einstein. It looks like it might be of interest here.

The spiraling dance of a pair of colliding black holes should last for billions of years. Yet we’ve caught about 10 black hole collisions since 2016 — far more than we would expect. Some process must be at work to accelerate the collision process, to make black holes come together more quickly than anticipated.
https://www.quantamagazine.org/to-make-two-black-holes-collide-try-three-20190815/
14) Message boards : Number crunching : Task clock running up instead of counting down. (Message 3802)
Posted 26 Sep 2019 by Jim1348
Post:
In previous versions, they had the problem of stuck work units that ran indefinitely; search for "long runners".
I haven't seen it for a long time though. Chances are, it just got stuck on you system. Try a reboot.
15) Message boards : Number crunching : Some task run longer than usual (Message 3773)
Posted 4 Sep 2019 by Jim1348
Post:
After all the whining about credits, I thought I should look at mine on BOINCstats, which I very seldom do. I see that they are over twice as high as on any other project.

I think the credits here should be cut in half. It will drive people to the other projects, where they can get what they deserve.
16) Message boards : Number crunching : The setting for "# of CPU´s" is getting ignored (Message 3760)
Posted 3 Sep 2019 by Jim1348
Post:
I don't think I have ever seen that, so it is probably something unusual. I would detach from the project, and then reattach. That will recreate some possibly corrupted files.
17) Message boards : Number crunching : Some task run longer than usual (Message 3748)
Posted 27 Aug 2019 by Jim1348
Post:
In going, can I just make the point that a completed WU advances the science of the project by precisely the same amount whether it be crunched by a competitive cruncher, by a Gridcoin cruncher or by a dyed-in-the-wool astrophysicist who crunches nothing else.

In staying, I can point out that the number of crunchers has increased from 1848 to 1871 in the last day. Maybe the ones leaving are making room for the ones who want to do it.
18) Message boards : Number crunching : Some task run longer than usual (Message 3735)
Posted 25 Aug 2019 by Jim1348
Post:
I really don't like to be a person, who make "inflation" on BOINC projects...

I like that attitude myself. It gives me more confidence in the science too, which is why I am here.
Keep up the work, and I will do it.
19) Message boards : Number crunching : Some task run longer than usual (Message 3731)
Posted 25 Aug 2019 by Jim1348
Post:
I never looks at credits and have no idea what they are. But I just added another machine anyway.
20) Message boards : Science : A heavyweight candidate for dark matter (Message 3725)
Posted 24 Aug 2019 by Jim1348
Post:
Almost a quarter of the universe stands literally in the shadows. According to cosmologists’ theories, 25.8% of it is made up of dark matter, whose presence is signaled essentially only by its gravitational pull. What this substance consists of remains a mystery. Hermann Nicolai, Director at the Max Planck Institute for Gravitational Physics in Potsdam, and his colleague Krzysztof Meissner from the University of Warsaw have now proposed a new candidate - a superheavy gravitino.
https://www.aei.mpg.de/2325660/dark-matter

Interesting stuff from the University of Warsaw. I wonder if this implies anything special about black holes?


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