From: Sam Moore <sam@daedalus.(none)>
Date: Mon, 3 Sep 2012 13:40:45 +0000 (+0800)
Subject: Parallel Programming - Start assignment 1
X-Git-Url: https://git.ucc.asn.au/?p=matches%2Fhonours.git;a=commitdiff_plain;h=297f83fd160c68e52981004624723c22d60a2c0e

Parallel Programming - Start assignment 1

Needed a -lGLU in the linker flags all along, derp
---

diff --git a/course/semester2/pprog/assignment1/Makefile b/course/semester2/pprog/assignment1/Makefile
new file mode 100644
index 00000000..cd6f0fee
--- /dev/null
+++ b/course/semester2/pprog/assignment1/Makefile
@@ -0,0 +1,45 @@
+INCLUDE_PATH = -I/usr/include
+LIBRARY_PATH = -L/usr/lib64 
+CCFLAGS = -std=c99 #-framework GLUT -framework OpenGL -framework Cocoa
+LDFLAGS = -lglut -lGL -lGLU -lpthread -lm
+
+# the directories containing the OpenGL libraries, f90gl libraries, GLUT
+# libraries, and f90gl GLUT libraries
+OGLLIBDIR = -L/usr/X11/lib
+
+# the fortran 90 libraries for OpenGL, including GLUT, GLU and OpenGL
+F90GLUTLIB = -lf90glut -lf90GLU -lf90GL
+
+# the X11 libraries
+X11LIB = -framework GLUT -framework OpenGL -framework Cocoa
+
+# the f90 compiler flag for specifying the location of MOD files
+MODS = -I/usr/X11/include/GL
+
+# the directory containing the X11 libraries
+X11LIBDIR =
+
+# fortran 90 compiler and compiler flags
+F95 = g95
+F90 = /usr/local/gfortran/bin/gfortran
+F90FLAGS = -O 
+F90FLAGS2 = -fopenmp -O
+GCC = gcc
+
+APP = nbody 
+
+all: $(APP)
+	@echo Make done
+
+#%: %.c
+#	gcc $^ -o $@ $(INCLUDE_PATH) $(CCFLAGS) $(LIBRARY_PATH) $(LDFLAGS)
+
+clean:
+	@rm -f *.o $(APP)
+
+nbodyf: nbodyf.f90
+	$(F90) nbodyf.f90 -o nbodyf $(F90FLAGS) $(MODS) $(OGLLIBDIR) $(F90GLUTLIB) $(X11LIBDIR) $(X11LIB)
+
+nbody: nbody.c
+	$(GCC) -o nbody nbody.c $(INCLUDE_PATH) $(CCFLAGS) $(LIBRARY_PATH) $(LDFLAGS)
+
diff --git a/course/semester2/pprog/assignment1/bodiesfield_10 b/course/semester2/pprog/assignment1/bodiesfield_10
new file mode 100644
index 00000000..6ef79370
--- /dev/null
+++ b/course/semester2/pprog/assignment1/bodiesfield_10
@@ -0,0 +1,11 @@
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diff --git a/course/semester2/pprog/assignment1/bodiesfield_100 b/course/semester2/pprog/assignment1/bodiesfield_100
new file mode 100644
index 00000000..72a4325a
--- /dev/null
+++ b/course/semester2/pprog/assignment1/bodiesfield_100
@@ -0,0 +1,101 @@
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diff --git a/course/semester2/pprog/assignment1/bodiesfield_500 b/course/semester2/pprog/assignment1/bodiesfield_500
new file mode 100644
index 00000000..65a13606
--- /dev/null
+++ b/course/semester2/pprog/assignment1/bodiesfield_500
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diff --git a/course/semester2/pprog/assignment1/nbody.c b/course/semester2/pprog/assignment1/nbody.c
new file mode 100644
index 00000000..5891d141
--- /dev/null
+++ b/course/semester2/pprog/assignment1/nbody.c
@@ -0,0 +1,321 @@
+// nbody.cpp : Template program for N-body
+// Copyright UWA, 2012
+
+#define _ANSI_SOURCE
+
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <omp.h>
+#include <GL/gl.h>
+#include <GL/glut.h>
+
+#define M_PI        3.14159265358979323846264338327950288   /* pi */
+#define WIDTH 800
+#define HEIGHT 800
+#define POINT_SIZE 1
+#define POSITION_X 112
+#define POSITION_Y 20
+#define WORLD_LEFT -10000
+#define WORLD_RIGHT 10000
+#define WORLD_BOTTOM -10000
+#define WORLD_TOP 10000
+#define VIEW_ANGLE 45
+#define RHO 100
+#define WORLD_NEAR 0.1
+#define WORLD_FAR 1000000
+#define BALL_SIZE 0.5
+#define REFRESH_RATE 0.001
+#define LINE_SIZE 1000
+#define G 6.67428E-11
+#define DELTA_T 0.05
+
+#define square(x) ((x)*(x))
+
+typedef struct {
+	double mass;
+	double X;
+	double Y;
+	double Z;
+	double Vx;
+	double Vy;
+	double Vz;
+	double Fx;
+	double Fy;
+	double Fz;
+	int color;
+} Particle;
+
+double previousTime, eyeTheta, eyePhi, eyeRho;
+float look[3];
+int windowWidth, windowHeight, upY;
+
+double SCALE = 1;
+
+Particle *body;
+int N;
+int numberOfProcessors=1;
+
+/*
+ * Initialization of graphics
+ */
+void Init(void) {
+    
+	glClearColor(1.0,1.0,1.0,0.0);
+	glColor3f(0.0f, 0.0f, 0.0f);
+	glPointSize(POINT_SIZE);
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+
+	/*init lighting */
+
+	GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 };
+	GLfloat mat_shininess[] = { 50.0 };
+	GLfloat light_position[] = { 1.0, 1.0, 0.0, 0.0 };
+	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
+	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
+	glLightfv(GL_LIGHT0, GL_POSITION, light_position);
+
+    glColorMaterial(GL_FRONT,GL_DIFFUSE);                // Set Color Capability
+    
+	glEnable(GL_LIGHTING);
+	glEnable(GL_LIGHT0);
+	glEnable(GL_DEPTH_TEST);
+    
+    glEnable(GL_COLOR_MATERIAL);		       // Enable color
+
+	double displayRatio = 1.0 * WIDTH / HEIGHT;
+	windowWidth = WIDTH;
+	windowHeight = HEIGHT;
+	previousTime = clock();
+	eyeTheta = 0;
+    eyePhi = 0.5 * M_PI;
+    eyeRho = RHO;
+    upY = 1;
+	look[0] = 0;
+	look[1] = 0;
+	look[2] = 0;
+    gluPerspective(VIEW_ANGLE, displayRatio, WORLD_NEAR, WORLD_FAR);  
+}
+
+/*
+ * This function redraws the screen after the positions of particles 
+ * have been updated
+ */
+void Display(void) {
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    gluLookAt(eyeRho * sin(eyePhi) * sin(eyeTheta), eyeRho * cos(eyePhi),
+                    eyeRho * sin(eyePhi) * cos(eyeTheta),
+					look[0], look[1], look[2], 0, upY, 0);
+
+	for (int i = 0; i < N; i++) {
+        //glClearColor(1.0,1.0,1.0,0.0);
+		glColor3f(0.0f, body[i].mass/1e11*100, 0.0f);
+        //glColor3f(1.0f, 0.0f, 0.0f);
+		glPushMatrix(); // to save the current matrix
+		glTranslated(SCALE*body[i].X, SCALE*body[i].Y, SCALE*body[i].Z);
+		glutSolidSphere (BALL_SIZE, 10, 10);
+		glPopMatrix(); // restore the previous matrix
+	}
+	glFlush();
+}
+
+/*
+ * Prints the body on screen
+ */
+void PrintBody(int i)
+{
+	printf("Body #%d M=%f X=%f Y=%f Z=%f Fx=%f Fy=%f Fz=%f Vx=%f Xy=%f Vz=%f\n", 
+           i, body[i].mass, body[i].X, body[i].Y, body[i].Z, body[i].Fx, 
+           body[i].Fy, body[i].Fz,	body[i].Vx, body[i].Vy, body[i].Vz);
+}
+
+/*
+ * Computing forces
+ */
+void Force(int a) {
+	double distance;
+	double con;
+	double gd;
+
+	body[a].Fx = body[a].Fy = body[a].Fz = 0;
+
+	for(int b=0; b<N; ++b)
+		if( b != a ){
+		distance = sqrt(square(body[b].X - body[a].X) + square(body[b].Y
+                                - body[a].Y) + square(body[b].Z - body[a].Z));
+		con = G * body[a].mass * body[b].mass / square(distance);
+		gd = con / distance;
+		body[a].Fx += gd * (body[b].X - body[a].X);
+		body[a].Fy += gd * (body[b].Y - body[a].Y);
+		body[a].Fz += gd * (body[b].Z - body[a].Z);
+		}
+}
+
+/*
+ * Compute velocities
+ */
+void Velocity(int a) {
+		body[a].Vx += body[a].Fx/body[a].mass * DELTA_T;
+		body[a].Vy += body[a].Fy/body[a].mass * DELTA_T;
+		body[a].Vz += body[a].Fz/body[a].mass * DELTA_T;
+}
+
+/*
+ * Compute positions
+ */
+void Position(int a) {
+	body[a].X += body[a].Vx * DELTA_T;
+	body[a].Y += body[a].Vy * DELTA_T;
+	body[a].Z += body[a].Vz * DELTA_T;
+}
+
+/*
+ * Main compute function
+ */
+void Compute() {
+	clock_t start, finish;
+
+	start = clock();
+
+	for(int a=0; a<N; a++) {
+		Force(a); // compute force
+		Velocity(a);
+		Position(a);
+	}
+
+	finish = clock();
+	printf("Performance: %ld clock ticks per computation cycle\n", finish-start);
+
+	//	PrintBody(0);
+//	PrintBody(N-1);
+}
+
+/*
+ * This function is called repeatedly by graphics library. You can consider 
+ * it as main loop in the program.
+ */
+void Animate(void) {
+
+	Compute(); //Compute and update new positions for the time step
+	Display(); // Display needs to be called to redraw the screen
+}
+
+/*
+ * This function is to manipulate with the image
+ */
+void KeyBoard(unsigned char theKey, int mouseX, int mouseY) {
+	if (theKey == 'x' || theKey == 'X') {
+		free(body);
+		exit(EXIT_SUCCESS);
+	}
+		if (theKey == 'i' || theKey == 'I') {
+			eyePhi -= M_PI / 20;
+		if (eyePhi == 0)
+				eyePhi = 2 * M_PI;
+		} else if (theKey == 'm' || theKey == 'I') {
+			eyePhi += M_PI / 20;
+		} else if (theKey == 'j' || theKey == 'J') {
+			eyeTheta -= M_PI / 20;
+		} else if (theKey == 'k' || theKey == 'K') {
+			eyeTheta += M_PI / 20;
+		} else if (theKey == ',') {
+			eyeRho += 0.5;
+		} else if (theKey == '.' || theKey == 'I') {
+			eyeRho -= 0.5;
+		} else if (theKey == 'w' || theKey == 'W') {
+			look[1] += 0.5;
+		} else if (theKey == 'z' || theKey == 'Z') {
+			look[1] -= 0.5;
+		} else if (theKey == 'a' || theKey == 'A') {
+			look[0] -= 0.5;
+		} else if (theKey == 's' || theKey == 'S') {
+			look[0] += 0.5;
+		} else if (theKey == '+') {
+			SCALE *= 1.1;
+		} else if (theKey == '-') {
+			SCALE *= 0.9;
+		}
+		if (sin(eyePhi) > 0) upY = 1;
+		else upY = 1;
+}
+
+void Reshape(int width, int height) {
+	double displayRatio = 1.0 * width / height;
+	windowWidth = width;
+	windowHeight = height;
+	glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluPerspective(VIEW_ANGLE, displayRatio, WORLD_NEAR, WORLD_FAR);
+	glViewport(0, 0, windowWidth, windowHeight);
+}
+
+/*
+ * This function reads an input file. You can change it if you choose a 
+ * different file format
+ */
+void readFile(char *fileName) {
+	char line[LINE_SIZE];
+	char *token;
+	FILE *file;
+
+	file = fopen(fileName, "rt");
+	N = atoi(fgets(line, LINE_SIZE, file));
+	body = (Particle*) calloc((size_t)N, sizeof(Particle));
+
+	puts("----------------------Initial field-------------------------------");
+
+	for (int i=0; i<N; ++i)
+		if(fgets(line, LINE_SIZE, file) != NULL){
+		token = strtok(line, ",; ");
+		body[i].mass = atof(token);
+		token = strtok(NULL, ",; ");
+		body[i].X = atof(token);
+		token = strtok(NULL, ",; ");
+		body[i].Y = atof(token);
+		token = strtok(NULL, ",; ");
+		body[i].Z = atof(token);
+		token = strtok(NULL, ",; ");
+		body[i].Vx = atof(token);
+		token = strtok(NULL, ",; ");
+		body[i].Vy = atof(token);
+		token = strtok(NULL, ",; ");
+		body[i].Vz = atof(token);
+
+		PrintBody(i);
+		}
+	puts("--------------------------------------------------------------");
+	puts("Use:\n X - exit\n I, J, K, M - rotate\n W, Z, A, S - move to view"
+         " point\n ./, - zoom in/out\n +/- - scaled zoom in/out\n");
+
+	fclose(file);
+}
+
+
+// This is main function. Do not change it.
+int main(int argc, char** argv)
+{
+	glutInit(&argc, argv);
+
+	if (argc < 2) {
+		puts("Please provide the filename, i.e. \'nbody bodiesfield.dat\'");
+	    exit(EXIT_SUCCESS);
+	}
+	if (argc == 2) readFile(argv[1]);
+	if (argc == 3) numberOfProcessors = atoi(argv[2]);
+
+	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
+	glutInitWindowSize(WIDTH, HEIGHT);
+	glutInitWindowPosition(POSITION_X, POSITION_Y);
+	glutCreateWindow("N-Body Parallel");
+	glutDisplayFunc(Display);
+	glutIdleFunc(Animate);
+	glutKeyboardFunc(KeyBoard);
+	glutReshapeFunc(Reshape);
+	Init();
+	glutMainLoop();
+}