Posts by Slicker

1) Message boards : News : Use at your own risk (Message 52)
Posted 10 hours ago by Slicker
Post:
I'm seeing some strange behavior from a CPU task.

Currently 19.876% progress, 14:23:54 elapsed, 1019d 10:05:20 estimated remaining.

Do you need CPU tasks to check how well the GPU tasks work, or should I switch to allowing GPU tasks only?

Using an Intel CPU.


Evidently, the algorithm used by BOINC has gotten more complicated and more stupid. If it is 14 hours at 20%, the 5x14 = 70 hours and not 1029 days. The issue is that BOINC uses estimated floating point operations for all its calculations and Collatz doesn't use any floating point at all so all the estimates are fubar.
Even the integer benchmarks are a joke since if you were to believe the output of them, an android phone is as fast as an i3 CPU when in reality it is 200 times slower. The same is true of GPUs. The number of stream processors drastically affects the speed but BOINC only allows the server to use a single value as the CPU to GPU speed difference. There's no way a GPU with 16 stream processors and 129MB RAM will have the same speed as a GPU with 2048 stream processors with 6GB RAM. So, the only thing to do now is to wait for several to complete at which time BOINC will show better estimates. Until then, elapsed time and percent complete are accurate so use those numbers to do the math and ignore the BOINC estimate.
2) Message boards : News : Use at your own risk (Message 50)
Posted 10 hours ago by Slicker
Post:
https://boinc.thesonntags.com/collatz/apps.php

There are only windows apps right now. I'm still working on the Linux/BSD Unix (a.k.a. OS X) apps.
3) Message boards : Number crunching : bad credit (Message 30)
Posted 19 hours ago by Slicker
Post:
It should be fixed now.
4) Message boards : News : Use at your own risk (Message 29)
Posted 19 hours ago by Slicker
Post:
I think I found the bug in the reported vs actual credit. Any WUs reported now should be correct. If not, I'm sure I'll hear about it.
5) Message boards : Number crunching : Where is the AMD-App ? (Message 18)
Posted 1 day ago by Slicker
Post:
There was and AMD application!

The issue is that the BOINC developers still refer to them as ATI. So, rather than opencl_amd_gpu which is the proper name, the plan class has use opencl_ati_gpu which doesn't even exist. The only opencl implementation is literally named the AMD OpenCL SDK.

The old Collatz project server which had a lot of tweaks I had done to the server code and allowed both amd and ati. Since Collatz is now using the latest BOINC server code, it will take some time for me to go back and put in the fixes that were in the old one. For now, I'm just trying to get the basics working again. Just the PC apps require compiling and testing 27 applications. Each application has to run a bunch of different test workunits to make sure that all results match. In addition, each has to be tested against the new server code to make sure that the encryption is cross platform compatible.
6) Message boards : News : Use at your own risk (Message 1)
Posted 1 day ago by Slicker
Post:
I'm testing the validator, work generator, assimilator, and applications. It may or may not work which means you may or may not get credit for your work. There is still a lot of work to do but I'm making progress.




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