@BeforeClass
public static void checkOpenCL() throws Exception {
// Verify that we can load the JavaCL library; ignore tests of OpenCL parsers on platforms that
// do not
// support OpenCL
try {
createBestContext();
} catch (final Throwable t) {
org.junit.Assume.assumeNoException(t);
}
f2_21_grammar = null;
simpleGrammar1 = null;
simpleGrammar2 = null;
}
public OpenCLInnerLoop(int numThreads) {
// choose device
List<CLDevice> devices = new ArrayList<CLDevice>();
System.out.println();
for (CLPlatform platform : JavaCL.listPlatforms()) {
for (CLDevice device : platform.listAllDevices(true)) {
System.out.println("Type: " + device.getType());
System.out.println("Vendor: " + device.getVendor());
System.out.println("Name: " + device.getName());
System.out.println("Compute units: " + device.getMaxComputeUnits());
System.out.println("Global mem: " + device.getGlobalMemSize() / 1e6 + "MB");
System.out.println("Driver version: " + device.getDriverVersion());
System.out.println();
devices.add(device);
}
}
if (context == null) {
for (CLDevice device : devices) {
if (device.getVendor().toLowerCase().contains("intel")
&& device.getType().contains(CLDevice.Type.GPU)
&& device.getMaxComputeUnits() >= 140
&& device.getGlobalMemSize() > 512e6) {
this.context = JavaCL.createContext(null, device);
}
}
}
// if (context == null) {
// for (CLDevice device : devices) {
// if (device.getVendor().toLowerCase().contains("nvidia") &&
// device.getType().contains(CLDevice.Type.GPU) && device.getMaxComputeUnits() >= 8 &&
// device.getGlobalMemSize() > 1e9 &&
// !device.getPlatform().getName().toLowerCase().contains("apple")) {
// this.context = JavaCL.createContext(null, device);
// }
// }
// }
if (context == null) {
this.context = JavaCL.createBestContext(DeviceFeature.CPU);
}
if (context.getDevices()[0].getType().contains(CLDevice.Type.GPU)
&& context.getDevices()[0].getVendor().toLowerCase().contains("nvidia")) {
this.blockSizeX = NVIDIA_GPU_BLOCK_SIZE_X;
this.rollX = NVIDIA_GPU_ROLL_X;
this.blockSizeY = NVIDIA_GPU_BLOCK_SIZE_Y;
} else if (context.getDevices()[0].getType().contains(CLDevice.Type.GPU)
&& context.getDevices()[0].getVendor().toLowerCase().contains("intel")) {
this.blockSizeX = INTEL_GPU_BLOCK_SIZE_X;
this.rollX = INTEL_GPU_ROLL_X;
this.blockSizeY = INTEL_GPU_BLOCK_SIZE_Y;
} else if (context.getDevices()[0].getType().contains(CLDevice.Type.CPU)) {
this.blockSizeX = CPU_BLOCK_SIZE_X;
this.rollX = CPU_ROLL_X;
this.blockSizeY = CPU_BLOCK_SIZE_Y;
}
System.out.println("Using context:");
System.out.println(context.toString());
System.out.println("Block size x: " + blockSizeX);
System.out.println("Roll x: " + rollX);
System.out.println("Block size y: " + blockSizeY);
this.context.setCacheBinaries(false);
this.queue = context.createDefaultQueue();
this.program = context.createProgram(kernelSrc());
this.program.addBuildOption("-cl-fast-relaxed-math");
this.program.addBuildOption("-cl-mad-enable");
this.program.addBuildOption("-cl-unsafe-math-optimizations");
this.program.addBuildOption("-cl-fast-relaxed-math");
this.program.addBuildOption("-cl-single-precision-constant");
this.program.build();
this.pc = new PointerCapturer();
this.numThreads = numThreads;
}