Bitcoin Forum
August 02, 2015, 12:17:16 AM *
News: New! Latest stable version of Bitcoin Core: 0.11.0 [Torrent]
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: Catalyst 12.4 + OpenCL 1.2  (Read 4997 times)
e21
Member
**
Offline Offline

Activity: 105


View Profile

Ignore
April 05, 2012, 05:39:03 PM
 #1

Catalyst 12.4 beta drivers available here:
http://www.tomshardware.com/forum/347950-33-catalyst-beta

OpenCL 1.2 beta:
http://blogs.amd.com/developer/2012/03/23/welcome-to-opencl%E2%84%A2-1-2-check-out-these-beta-drivers-that-contain-a-complete-opencl%E2%84%A2-1-2-solution/

From page:
Last December we released preview drivers that contained much of new the functionality defined in the OpenCL 1.2™ specification.  AMD is an ardent promoter of OpenCL™, and today, I am pleased to make available beta drivers that contain a complete  – beta level – implementation of the OpenCL™ 1.2 specification.  You can download the drivers from our APP SDK downloads page.

The OpenCL  1.2 beta includes  the following OpenCL™ 1.2 functionality:

    Host access flags for memory objects enable more efficient buffer handling and provide added protection. For example, a buffer that is created as “write only” cannot be read from the host.
    Pattern based GPU buffer and image initialization can help eliminate need for certain buffer/image transfers
    Memory objects migration supports transfer of buffers prior to need
    New generalized image creation API
    Enhanced image/buffer map operations
    OpenCL 1.2 CPU device partition including partition of a CPU after addition to a context
    Generalized 1D and 2D images, image arrays,  and image<-> buffer interop
    Libraries support including the separation of compile and link phases and the ability to compile with external symbols
    Kernel reflection, the ability to query a kernel’s arguments
    Support for printf as a built in function


Not a developer, but could this be the release we've been waiting for? Planning on trying it on my 7970 rig tonight, see if 5+ GPUs work again at least..
1438474636
Hero Member
*
Offline Offline

Posts: 1438474636

View Profile Personal Message (Offline)

Ignore
1438474636
Reply with quote  #2

1438474636
Report to moderator
1438474636
Hero Member
*
Offline Offline

Posts: 1438474636

View Profile Personal Message (Offline)

Ignore
1438474636
Reply with quote  #2

1438474636
Report to moderator
1438474636
Hero Member
*
Offline Offline

Posts: 1438474636

View Profile Personal Message (Offline)

Ignore
1438474636
Reply with quote  #2

1438474636
Report to moderator
AntMiner S5 BITMAIN The most power efficient bitcoin miner on the market
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1438474636
Hero Member
*
Offline Offline

Posts: 1438474636

View Profile Personal Message (Offline)

Ignore
1438474636
Reply with quote  #2

1438474636
Report to moderator
1438474636
Hero Member
*
Offline Offline

Posts: 1438474636

View Profile Personal Message (Offline)

Ignore
1438474636
Reply with quote  #2

1438474636
Report to moderator
1438474636
Hero Member
*
Offline Offline

Posts: 1438474636

View Profile Personal Message (Offline)

Ignore
1438474636
Reply with quote  #2

1438474636
Report to moderator
jwzguy
Hero Member
*****
Offline Offline

Activity: 868



View Profile

Ignore
April 05, 2012, 06:20:47 PM
 #2

Please let us know how much CPU usage you have.

19wXnWTeGuraN9g5UsMAi119sWzDCQcr7S
Bitcoin Logo shirts!
e21
Member
**
Offline Offline

Activity: 105


View Profile

Ignore
April 06, 2012, 05:48:24 AM
 #3

Please let us know how much CPU usage you have.

CPU usage is minimal with 4 GPUs using intensity 9, when intensity is raised to 10 however, CPU usage jumps to almost 100%. 5 GPUs doesn't cause a BSOD, but the screen cuts out without causing a reboot, the system just hangs... Hashrate is unchanged as well.. at least it didn't go down at all, if anything miners seem to be hashing like .5 MH/s faster (for 7970s mind you). Stability seems maybe a bit better as well, where my system almost certainly would have rebooted with 12.3, instead caused a driver crash, which reset my GPUs to stock clocks.
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!