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drummers-lowrise
1) Message boards : Number crunching : a 10 month challenge! (Message 149140)
Posted 41 days ago by Dr Who Fan
Looks like the original post Was edited to correct the END DATE... Last modified: 2 Mar 2021 | 14:20:18 UTC
In honor of Waclaw Sierpinski's 139th birthday (and Pi Day!), PrimeGrid will be running a 10-day challenge on the Seventeen or Bust (SoB-LLR) subproject from 14 March 12:00 UTC to 24 March 12:00 UTC.
2) Message boards : The Riesel Problem : K=2293 reported in top 5k page (Message 148930)
Posted 51 days ago by Dr Who Fan
He doesn't seem to post at either PG or mersenneforum

He posts to mersenneforum, https://www.mersenneforum.org/search.php?searchid=3800790. /JeppeSN

He must of hidden all his posts at mersenneforums. I get the following at the message board link you posted:
Sorry - no matches. Please try some different terms
.
3) Message boards : Number crunching : Fermat Divisor Search and 2990wx bug (Message 147140)
Posted 104 days ago by Dr Who Fan
yet when i choose all 16 to cancel . seeing i was going to blow over the req time to finish.
it showed 75 wu going to cancel..

Sounds like you might have accidentally clicked the button in BOINC Manager (the Graphical User Interface) on LEFT SIDE that you can toggle between "Show active tasks" and "Show all tasks".
Click on it once again to Show all tasks.

DEFINE:
Active tasks == Only the Currently Running tasks.
All task == show all tasks even if not currently running.
4) Message boards : Wieferich and Wall-Sun-Sun Prime Search : Any idea on WU times CPU vs. GPU? (Message 146105)
Posted 130 days ago by Dr Who Fan
830 seconds using a free Google Cloud virtual PC running Linux on Intel(R) Xeon CPU @ 2.20GHz and a Tesla T4 (4095MB) GPU.


Is that just the free trial or like free-free?

It actually the Google Colab (FREE TIER)

It runs in an OPEN Chrome web browser tab/window on your PC. You can only have one instance running at a time on your Google account.

You are not guaranteed a GPU. It will inform you if the GPU is not available when you try to run the instance.

Most of the time the instance will run about 6 to 8 hour before stopping. Sometimes it only run one to two hours.

The CPU is usually one of three:
* Intel(R) Xeon CPU @ 2.00GHz (2 Cores)
* Intel(R) Xeon CPU @ 2.20GHz (2 Cores)
* Intel(R) Xeon CPU @ 2.30GHz (2 Cores)

The GPU (when available) is usually one of two:
* NVIDIA Tesla T4 (4095MB)
* NVIDIA Tesla P100-PCIE-16GB (4095MB)

You can usually restart right after it stops but you more than likely loose any task(s) that were Unfinished (In Process).

More detail and how to setup for BOINC in this PrimeGrid topic: Google Colab and its free GPUs
5) Message boards : Wieferich and Wall-Sun-Sun Prime Search : Any idea on WU times CPU vs. GPU? (Message 145981)
Posted 132 days ago by Dr Who Fan
830 seconds using a free Google Cloud virtual PC running Linux on Intel(R) Xeon CPU @ 2.20GHz and a Tesla T4 (4095MB) GPU.
6) Message boards : News : New Subproject! (Message 145909)
Posted 133 days ago by Dr Who Fan
When my PPS - sieve are ready I switch to the new project

how to find it under Name Sub - ( Fokus Project )

???

The Name ??

I learn and this is good

As described in the first posting in this topic the project name is
Wieferich and Wall-Sun-Sun Prime Search
and can be found at the very bottom of selection page
Preferences for this project PrimeGrid preferences.
Sub Project has tasks for CPU, NVIDIA GPU & AMD/ATI GPU.
7) Message boards : Wieferich and Wall-Sun-Sun Prime Search : WW project is live (Message 145786)
Posted 135 days ago by Dr Who Fan
I don't see any CPU ONLY task listing on the sub-project selection pages yet the check box is there and clickable.
Wieferich and Wall-Sun-Sun Prime Search https://www.primegrid.com/prefs_edit.php ...

Supported platforms:
Windows: Nvidia GPU (OpenCL): 64 bit, AMD/ATI GPU (OpenCL): 64 bit, CPU: 64 bit
Linux: Nvidia GPU (OpenCL): 64 bit, AMD/ATI GPU (OpenCL): 64 bit, CPU: 64 bit
Mac: Nvidia GPU (OpenCL): 64 bit, CPU: 64 bit


However, I do see CPU ONLY apps on the Applications page
Wieferich and Wall-Sun-Sun -- "ww"
Platform Version Installation time
Microsoft Windows running on an AMD x86_64 or Intel EM64T CPU 1.01 (cpu_WW_mt) 28 Nov 2020 | 18:35:19 UTC
Microsoft Windows running on an AMD x86_64 or Intel EM64T CPU 1.02 (OCL_cuda_WW) 28 Nov 2020 | 22:44:56 UTC
Microsoft Windows running on an AMD x86_64 or Intel EM64T CPU 1.02 (opencl_ati_WW) 28 Nov 2020 | 22:44:45 UTC
Linux running on an AMD x86_64 or Intel EM64T CPU 1.01 (cpu_WW_mt) 28 Nov 2020 | 18:35:18 UTC
Linux running on an AMD x86_64 or Intel EM64T CPU 1.02 (OCL_cuda_WW) 28 Nov 2020 | 22:44:57 UTC
Linux running on an AMD x86_64 or Intel EM64T CPU 1.02 (opencl_ati_WW) 28 Nov 2020 | 22:44:48 UTC
Mac OS 10.5+ running on an Intel 64-bit CPU 1.01 (cpu_WW_mt) 28 Nov 2020 | 18:35:20 UTC
Mac OS 10.5+ running on an Intel 64-bit CPU 1.01 (OCL_cuda_WW) 28 Nov 2020 | 18:35:14 UTC
Mac OS 10.5+ running on an Intel 64-bit CPU 1.01 (opencl_ati_WW) 28 Nov 2020 | 18:35:16 UTC
8) Message boards : Number crunching : Collab and Suspending GPU (Message 143184)
Posted 215 days ago by Dr Who Fan
I think Google is messing around with it!

My Google Colab (free version) has been been acting very weird lately. For me, on and off about the last almost two weeks. Here is what I have been experiencing:
* Suddenly last week it won't let me run my Wu-Prop NCI project concurrent with any other projects though nothing has changed in my code / images that have been successfully running it past many months.
* No GPU instance available or if I get a GPU instance the session only runs for 1 to maximum of 3 hours before stopping
* CPU only instance normally are running about 6 hours.
* CPU + GPU instance hours now vary all over the place but no more than 4 hours before stopping.
*Recently I had a CPU ONLY instance running for almost 13 hours on the SR5/SR Base project before stopping.
9) Message boards : General discussion : Fastest Human Calculator’ (Message 143077)
Posted 219 days ago by Dr Who Fan
Amazing story!

Child with Fractured Skull Grew Up to Be ‘Fastest Human Calculator’
Twenty-year-old Neelakantha Bhanu is known in India and all over the world as the “world’s fastest human calculator,” but it was not always this way.

... The doctors told Bhanu’s parents his brain function could be impaired for the rest of his life due to the head trauma.
10) Message boards : General discussion : Former mathematician claims 2 + 2 = 5 (Message 142905)
Posted 223 days ago by Dr Who Fan
Okay can someone please explain in simple terms what this means?
EVERYTHING YOU NEED TO KNOW ABOUT "2+2=5". As a former mathematician, I have things to say.


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