Intial commit of source code samples for GitHub repo.

openmp-c/hello-omp.c

@@ -0,0 +1,43 @@
+#include <omp.h>
+#include <stdio.h>
+
+#ifdef _OPENMP
+
+static char versionbuf[16];
+static char gitversion[] = VERSIONINFO;
+
+int main()
+{
+	int tcount = 0;
+	char *versionp;
+
+	/* Tell about the version of OpenMP API we're using.
+	 * Specification source: www.openmp.org.
+	*/
+	switch (_OPENMP) {
+		case 200805:
+			versionp = "3.0 (May 2008)"; break;
+		case 201107:
+			versionp = "3.1 (Jul 2011)"; break;
+		case 201307:
+			versionp = "4.0 (Jul 2013)"; break;
+		default:
+			sprintf(versionbuf, "(%6.6d)", _OPENMP); 
+			versionp = versionbuf;
+			break;
+	}
+	printf("Using OpenMP version: %s\n", versionp);
+	printf("Program git commit info: %s\n", gitversion);
+	printf("Max threads = %d\n", omp_get_max_threads());
+
+#pragma omp parallel
+#pragma omp atomic
+	tcount++;
+
+#pragma omp parallel
+	/* Hello parallel world... */
+	printf("Hello OpenMP World from thread %3.3d of %3.3d! (tcount=%d)\n",
+		omp_get_thread_num() + 1, omp_get_num_threads(), tcount);
+}
+
+#endif