How to setup jminer when AMD and nVidia GPU in one PC
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@nixxda Thank you for reply.
I think that too. So I tested 0.4.7 snapshot and 0.4.6 release. But java did not work.
What your Windows environment variable (OPENCL_LIB)?
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@ccminer @nixxda Sorry. java run.
C:\Users\Hajime\Burstcoin>java -jar -d64 -XX:+UseG1GC burstcoin-jminer-0.4.6-SNAPSHOT.jar 23:57:01.894 [main] INFO burstcoin.jminer.JMinerApplication - Starting the engines ... please wait! # # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffe8e7c70cd, pid=11640, tid=0x0000000000002c2c # # JRE version: Java(TM) SE Runtime Environment (8.0_121-b13) (build 1.8.0_121-b13) # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.121-b13 mixed mode windows-amd64 compressed oops) # Problematic frame: # C [nvopencl.dll+0x3870cd] # # Failed to write core dump. Minidumps are not enabled by default on client versions of Windows # # An error report file with more information is saved as: # C:\Users\Hajime\Burstcoin\mining.ninja-B\hs_err_pid11640.log # # If you would like to submit a bug report, please visit: # http://bugreport.java.com/bugreport/crash.jsp # The crash happened outside the Java Virtual Machine in native code. # See problematic frame for where to report the bug. #I disabled AMD RX480 board. but occurred same error.
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@Hajime Downgrade your nvidia driver, this worked with me
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@rnahlawi Bingo! Now jminer run on driver version 372.70
But mining speed do not faster than RX480.
$300 RX480 > $600 GeForce GTX 1080
lol! lol...
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@Hajime I prefer RX480 over Nvidia. and Nvidia 970GTX on top of latest 10xx series.
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@Hajime Sorry for the problems ... i don't know why lastest drivers have issues with jocl.org, the lib used by jminer. Will hopefully fixed in the near future. I also had problems with latest AMD drivers and after i go back to version 16.11.5 ... everything works fine.
I heard NVIDIA cards do not perform very good compared to AMD in terms of openCL.But it is not always the problem of the GPU speed, ensure your card uses full PCIe speed, if it just uses PCIe x8 instead of x16 this may slow down a huge mining operation.

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@luxe working with me on 16.12.1. Slower, but I think cause i connected the card on riser. Will connect the card to 16x slot on next drive and confirm speed.
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@rnahlawi Just do not change just because there is a higher version, may result in a lot wasted time get it running again :-) Latest version is 17.1.2 ... http://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-17.1.2-Release-Notes.aspx ... if someone did check or want to check ... give us a hint if it works.
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@luxe Thank you for reply
I look GPU-Z at first time. Oops...

I go to a bed!
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@Hajime click on that questionmark and run the test to ensure displayed is right, it may be displayed wrong if gpu is idle.
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@luxe Thank you for advice.
I tested one GPU board in my PC and measured easy benchmark.
GeForce GTX 1080 280MB/sec ave
RX480 360MB/sec ave
RX460 280MB/sec aveGPU-ID said RX460 do not support OPEN CL but can plot and mining.
Conclusion: CPU power is insufficient. I give up.





