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Number crunching :
Nvidia astropulse
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Author | Message |
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betreger Send message Joined: 29 Jun 99 Posts: 11361 Credit: 29,581,041 RAC: 66 |
Last week I started crunching Seti on a GT430. I have received 2 diferent types of astropulse. They are AstroPulse v6 v6.04 (cuda_opencl_100), and AstroPulse v6 v6.04 (opencl_nvidia_100). What is the difference? |
Mike Send message Joined: 17 Feb 01 Posts: 34258 Credit: 79,922,639 RAC: 80 |
There is no real difference. One is for Boinc 6 the other plan class is used by Boinc 7. Claggy can explain it better i`m sure. With each crime and every kindness we birth our future. |
Claggy Send message Joined: 5 Jul 99 Posts: 4654 Credit: 47,537,079 RAC: 4 |
Basically, all Nvidia CUDA GPUs support OpenCL as long as they are running 197.xx drivers or later, Boinc 6 can only detect whether Nvidia GPUs support CUDA, using the assumption as long as they have recent enough drivers, the Scheduler will send cuda_opencl_100 tasks to Nvidia GPUs with 26x.xx drivers (i think it is set slightly too low through, it should be 263.xx rather than 260.xx), If a host is running a Boinc 7 client, the Nvidia drivers are new enough, and Boinc 7 detects OpenCL support, then the Scheduler will send opencl_nvidia_100 tasks too (in addition to the scheduler sending cuda_opencl_100 tasks), But sometimes we come across a host running Boinc 7 where Nvidia OpenCL support isn't reported, But the scheduler will still send cuda_opencl_100 tasks using the assumption that OpenCL support is there when it isn't, Eric knows about this problem, and has been Bug fixing. Claggy |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
But whichever of the two possible labels is given to a task, it's essentially the same task, and it will be processed by the same application on the same hardware device. |
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