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PrimeGrid Perseid Shower Challenge August 12-14

Ken g6

Ken g6

Programming Moderator, Elite Member
Moderator
Welcome to the PrimeGrid Perseid Shower challenge. This is the only sieve challenge - and only sieve project left - that can't using a graphics card.

What you need:

What would help, but isn't absolutely necessary:
  • A 64-bit OS on a 64-bit processor will run 70% faster than a 32-bit OS.
  • Enabling hyper-threading may be helpful for this project only.
  • Downloading a few WUs early. This project has a large (35MB) one-time sieve file to download.
  • Reading [post=30943822]Ken's WU Juggling Guide[/post] and applying it once you figure out how long each WU will take.

What won't help (but won't hurt either):
  • A large amount of RAM.
  • Any video cards.

If you're running a 32-bit OS on a 64-bit processor, there are three ways you can run a 64-bit OS for this challenge.
  1. Install a 64-bit OS as your primary OS.
  2. Install a 64-bit OS as a secondary OS. Wubi is the easiest way to install 64-bit Ubuntu Linux alongside 32-bit Windows.
  3. Install a 64-bit OS on a virtual machine in VMWare. This may not work, depending on your processor, and even if it does work it may be slower than the other two methods. However, it's less intrusive than the other two methods.

This challenge starts on 12 August 2013 at 18:00 UTC and runs for only two days. Only work downloaded and uploaded during the challenge will be counted. Should you not be able to be in front of one or more computers at the start time, either set their queue level to zero (0) days or try one of the scheduled start methods from [thread=2051485]the strategy thread[/thread]. Network connection time options may also be useful - though they depend on your computer's clock being correct, so set the start time a few minutes late.

Welcome and good luck to all! :thumbsup:
 
Last edited:
Ia'm in. Looks like it's the primeGrid challenge the 12-14th, and the Seti WOW event
the 15-29th 😎
 
Good news, everyone! Android is crunching a couple of race-type work units on my tablet right now. 🙂 Probably better to run it on a tablet than a phone (more surface area to dissipate heat), not to use all your cores until you're sure how hot it will get, and to leave the thing plugged in.
 
Michael Goetz said:
Ken g6 said:
Well, my two Android work units completed successfully. 36 hours seems to be the average time for devices like this.
Click to expand...

We've made the TRP sieve tasks 5 times shorter, so once you get one of the new tasks the run time should be in the vicinity of 7 hours. On a CPU it should average about 45 minutes.
Click to expand...
So if you thought your old Pentium, Athlon, or Android device was too slow to complete a WU in this race, consider firing it up now. 🙂
 
You've got my 10 cores, but all I've got so far are failed downloads & checksum errors. Anyone have any luck getting WUs?
 
Yes, we are off. I changed my mind and put 44 cores to the challenge. 🙂
And yes, I have a full set of WUs xcrunching.
It may be server overload - that has happened before.

The we will also see if I have some time to process some stats ... 😉
 
I got my FX 8350 @ 4.4 GHz going and a Core 2 Duo going also. About half way through 8 workunits and 25% done with the two the Core 2 Duo is doing. Started about 2-3 minutes late. I was off on my UTC conversion an hour and started an hour early lol. Cancelled all those WU's and waited until 1PM CST to get the new ones.
 
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