diff --git a/src/preypredator/PPRuntimeGPU.java b/src/preypredator/PPRuntimeGPU.java
index 6f2d656..bdf6b3b 100644
--- a/src/preypredator/PPRuntimeGPU.java
+++ b/src/preypredator/PPRuntimeGPU.java
@@ -1,6 +1,5 @@
 package preypredator;
 
-import mcmas.api.ContextType;
 import mcmas.api.MCMASContext;
 import mcmas.core.MCMCommandQueueProperty;
 import mcmas.plugins.axb.AXBPlugin;
@@ -13,8 +12,8 @@ public class PPRuntimeGPU implements PPRuntime {
 	private final AXBPlugin axbPlugin;
 	private final GridSearchPlugin searchPlugin;
 	
-	public PPRuntimeGPU(ContextType type) {
-		this.context = new MCMASContext(type, MCMCommandQueueProperty.ENABLE_PROFILING);
+	public PPRuntimeGPU() {
+		this.context = new MCMASContext(MCMCommandQueueProperty.ENABLE_PROFILING);
 		this.axbPlugin = new AXBPlugin(context);
 		this.searchPlugin = new GridSearchPlugin(context);
 	}
diff --git a/src/preypredator/PreyPredator2.java b/src/preypredator/PreyPredator2.java
index 7a067e3..dd3c4f7 100644
--- a/src/preypredator/PreyPredator2.java
+++ b/src/preypredator/PreyPredator2.java
@@ -12,7 +12,6 @@ import org.slf4j.LoggerFactory;
 
 import joptsimple.OptionParser;
 import joptsimple.OptionSet;
-import mcmas.api.ContextType;
 
 public class PreyPredator2 {
 	
@@ -241,7 +240,7 @@ public class PreyPredator2 {
 	public static void main(String[] args) {
 		OptionParser parser = new OptionParser();
 		
-		parser.acceptsAll(Arrays.asList("g", "gpu"), "Enable GPU context")
+		parser.acceptsAll(Arrays.asList("g", "gpu", "opencl"), "Enable OpenCL support")
 		.withOptionalArg().ofType(Boolean.class).defaultsTo(true);
 		
 		parser.acceptsAll(Arrays.asList("h", "help"), "Print this help");
@@ -273,10 +272,10 @@ public class PreyPredator2 {
 		PPRuntime runtime;
 		
 		if ((Boolean) (options.valueOf("gpu"))) {
-			logger.info("Use GPU Runtime");
-			runtime = new PPRuntimeGPU(ContextType.ALL);
+			logger.info("Use OpenCL runtime on first available GPU");
+			runtime = new PPRuntimeGPU();
 		} else {
-			logger.info("Use CPU Runtime");
+			logger.info("Use Java Runtime");
 			runtime = new PPRuntimeCPU();
 		}