Hello,

I'm crunching via grcpool and I'm wondering why I get errors with my Geforce GTX 770. These are my failing tasks:

https://sech.me/boinc/Amicable//results.php?hostid=10771&offset=0&show_names=0&state=6&appid=#

It seems that every WU crashes with the same error on different code lines:

OpenCL.cpp, line 469: clEnqueueWriteBuffer returned error -4

Is there something I can do for avoiding this problem? In one of the other Get Started Threads I read that a graphics card needs to have 2GB memory which this card has, but it explains why I can't use my Geforce GTX 650 Ti BOOST (some of the older failed WUs are caused by this card, the newest failed WUs are form the GTX 770).

Greetings Onsokumaru

Try to reboot and run BOINC only, don't start any programs that use GPU (including web-browser). If errors go away, it means there is still not enough GPU memory to run both Amicable and other software at the same time.

I would say to try reducing kernel size here: https://sech.me/boinc/Amicable/prefs.php?subset=project
But you'll need to use a separate user account for it.

Ok, I'll try that. Another thing that just now popped in to my mind is... than it needs 2GB memory and the card has only 2GB so it's stupid to try to run 2 WUs parallel on that card, right? Maybe that's just the problem... I'll check this points. Thank you! :)

it needs 2GB memory and the card has only 2GB so it's stupid to try to run 2 WUs parallel on that card, right?

Yes, each WU requires 2 GB of memory, so you need 4 GB to run 2 WUs in parallel.