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Diablo-D3 / DiabloMiner

OpenCL miner for Bitcoin
https://bitcointalk.org/index.php?topic=1721.0
GNU General Public License v3.0
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java.lang.NullPointerException with Intel OpenCL SDK #42

Closed lazyranma closed 11 years ago

lazyranma commented 12 years ago

With Intel OpenCl SDK installed I get following exception: [22.04.12 17:50:13] Started
[22.04.12 17:50:13] Connecting to: XXX [22.04.12 17:50:13] P2Pool no delay mode enabled
[22.04.12 17:50:13] Using NVIDIA CUDA OpenCL 1.1 CUDA 4.2.1
[22.04.12 17:50:13] Added GeForce GTX 460 (#1) (7 CU, local work size of 1024) [22.04.12 17:50:13] Using Intel(R) OpenCL OpenCL 1.1 LINUX
Exception in thread "main" java.lang.NullPointerException at com.diablominer.DiabloMiner.DiabloMiner$DeviceState.(DiabloMiner.java:1218) at com.diablominer.DiabloMiner.DiabloMiner.execute(DiabloMiner.java:572) at com.diablominer.DiabloMiner.DiabloMiner.main(DiabloMiner.java:140)

Corresponding line from the source file (if line number is correct): deviceName = device.getInfoString(CL10.CL_DEVICE_NAME).trim() + " (#" + count + ")";

It could be that ether device is null or device.getInfoString() returns null. But when I use clGetDeviceInfo() from C API to query device name, it properly returns string. It could mean that device is null or there are some problems with java bindings.

Linux x86_64, Java(TM) SE Runtime Environment (build 1.6.0_26-b03), latest Intel OpenCL SDK 1.5.

Diablo-D3 commented 12 years ago

I think Intel has figured out a new way to break OpenCL, they seem to be very good at this. In the meantime start DiabloMiner with -D 1, it should skip the crash and keep going.

Diablo-D3 commented 11 years ago

I'm closing this bug until someone can confirm Intel continues to not comply with the OpenCL specification.