minor update

tests/opencl/nearn/inputgen/Makefile

@@ -0,0 +1,5 @@
+hurricanegen: hurricanegen.c
+	gcc -std=c99 -o $@ $<
+
+clean:
+	rm hurricanegen

tests/opencl/nearn/inputgen/gen_dataset.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+./hurricanegen 65536 1
+./hurricanegen 131072 1
+./hurricanegen 262144 1
+./hurricanegen 524288 1
+./hurricanegen 1048576 1
+./hurricanegen 2097152 1
+./hurricanegen 4194304 1
+./hurricanegen 8388608 1
+./hurricanegen 16777216 1
+./hurricanegen 33554432 1

tests/opencl/nearn/inputgen/gen_dataset_multifile.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+./hurricanegen 10240 1
+./hurricanegen 20480 2
+./hurricanegen 40960 4
+./hurricanegen 81920 8
+./hurricanegen 163840 16
+./hurricanegen 327680 32
+./hurricanegen 655360 64
+./hurricanegen 1310720 128
+./hurricanegen 2621440 256
+./hurricanegen 5242880 512
+

tests/opencl/nearn/inputgen/hurricanegen.c

@@ -0,0 +1,105 @@
+/*
+ * hurricanegen.c
+ * Original author unknown
+ * Modified by Sam Kauffman - University of Virginia
+ *
+ * Generates datasets of "hurricanes" to be used by Rodinia's Nearest Neighbor (nn)
+ * Also generates lists of the files in the dataset. These lists are passed to nn.
+ *
+ * Usage: hurricanegen <num_hurricanes> <num_files>
+ * The number of hurricanes should be a multiple of both 1024 and the number of files.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+// 641986 gets you ~30 MB of data
+int main(int argc, char **argv)
+{
+	FILE *fp;
+	int i = 0, total_canes = 0, canes = 0, num_files = 0, j = 0;
+	int year, month, date, hour, num, speed, press;
+	float lat, lon;
+	int hours[4] =
+	{ 0, 6, 12, 18 };
+	char *name, fname[30];
+	char names[21][10] =
+	{ "ALBERTO", "BERYL", "CHRIS", "DEBBY", "ERNESTO", "FLORENCE", "GORDON",
+			"HELENE", "ISAAC", "JOYCE", "KIRK", "LESLIE", "MICHAEL", "NADINE",
+			"OSCAR", "PATTY", "RAFAEL", "SANDY", "TONY", "VALERIE", "WILLIAM" };
+
+	if (argc < 3)
+	{
+		fprintf(stderr, "Error: Enter a number of hurricanes and a number of files.\n");
+		fprintf(stderr, "The number of hurricanes should be a multiple of both 1024\nand the number of files.\n");
+		exit(0);
+	}
+
+	total_canes = atoi(argv[1]);
+	num_files = atoi(argv[2]);
+
+	total_canes = ((total_canes+1023)/1024) * 1024; // round up to multiple of 1024
+	canes = (total_canes + num_files - 1) / num_files; // round up (ceiling division)
+	total_canes = canes * num_files;
+
+	srand(time(NULL));
+
+	for (j = 0; j < num_files; j++)
+	{
+		if (num_files == 1)
+			sprintf(fname, "cane%dk.db", total_canes / 1024);
+		else
+			sprintf(fname, "cane%dk_%d_%d.db", total_canes / 1024, num_files, j);
+
+		if ((fp = fopen(fname, "w")) == NULL)
+		{
+			fprintf(stderr, "Failed to open output file '%s'!\n", fname);
+			return -1;
+		}
+
+		for (i = 0; i < canes; i++)
+		{
+			year = 1950 + rand() % 55;
+			month = 1 + rand() % 12;
+			date = 1 + rand() % 28;
+			hour = hours[rand() % 4];
+			num = 1 + rand() % 28;
+			name = names[rand() % 21];
+			lat = ((float) (7 + rand() % 63))
+					+ ((float) rand() / (float) 0x7fffffff);
+			lon = ((float) (rand() % 358))
+					+ ((float) rand() / (float) 0x7fffffff);
+			speed = 10 + rand() % 155;
+			press = rand() % 900;
+
+			fprintf(fp, "%4d %2d %2d %2d %2d %-9s %5.1f %5.1f %4d %4d\n",
+					year, month, date, hour, num, name, lat, lon, speed, press);
+
+		}
+
+		fclose(fp);
+	}
+	printf("Generated %d hurricanes in %d file(s).\n", total_canes, num_files);
+
+	if (num_files == 1)
+	{
+		sprintf(fname, "list%dk.txt", total_canes / 1024);
+		fp = fopen(fname, "w");
+
+		fprintf(fp, "../../data/nn/cane%dk.db\n", total_canes / 1024);
+	}
+	else
+	{
+		sprintf(fname, "list%dk_%d.txt", total_canes / 1024, num_files);
+		fp = fopen(fname, "w");
+
+		for (int i = 0; i < num_files; i++)
+			fprintf(fp, "../../data/nn/cane%dk_%d_%d.db\n", total_canes / 1024, num_files, i);
+	}
+
+	fclose(fp);
+	printf( "File list written to %s.\n", fname );
+	return 0;
+}