Password is: CSOSPRING2020%-clock.c #include #include #include #include #include "clock.h" /* ...

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Password is: CSOSPRING2020%-clock.c #include  #include  #include  #include  #include "clock.h" /*   * Routines for using the cycle counter   */ /* Detect whether running on Alpha */ #ifdef __alpha #define IS_ALPHA 1 #else #define IS_ALPHA 0 #endif /* Detect whether running on x86 */ #ifdef __i386__ #define IS_x86 1 #else #define IS_x86 0 #endif #if IS_ALPHA /* Initialize the cycle counter */ static unsigned cyc_hi = 0; static unsigned cyc_lo = 0; /* Use Alpha cycle timer to compute cycles.  Then use    measured clock speed to compute seconds  */ /*  * counterRoutine is an array of Alpha instructions to access   * the Alpha's processor cycle counter. It uses the rpcc   * instruction to access the counter. This 64 bit register is   * divided into two parts. The lower 32 bits are the cycles   * used by the current process. The upper 32 bits are wall   * clock cycles. These instructions read the counter, and   * convert the lower 32 bits into an unsigned int - this is the   * user space counter value.  * NOTE: The counter has a very limited time span. With a   * 450MhZ clock the counter can time things for about 9   * seconds. */ static unsigned int counterRoutine[] = {     0x601fc000u,     0x401f0000u,     0x6bfa8001u }; /* Cast the above instructions into a function. */ static unsigned int (*counter)(void)= (void *)counterRoutine; void start_counter() {     /* Get cycle counter */     cyc_hi = 0;     cyc_lo = counter(); } double get_counter() {     unsigned ncyc_hi, ncyc_lo;     unsigned hi, lo, borrow;     double result;     ncyc_lo = counter();     ncyc_hi = 0;     lo = ncyc_lo - cyc_lo;     borrow = lo > ncyc_lo;     hi = ncyc_hi - cyc_hi - borrow;     result = (double) hi * (1  ncyc_lo;     hi = ncyc_hi - cyc_hi - borrow;     result = (double) hi * (1 = THRESHOLD) { 	    clock_t newc; 	    times(&t); 	    newc = t.tms_utime; 	    if (newc > oldc) { 		double cpt = (newt-oldt)/(newc-oldc); 		if ((cyc_per_tick == 0.0 || cyc_per_tick > cpt) && cpt > RECORDTHRESH) 		    cyc_per_tick = cpt; 		/* 		  if (verbose) 		  printf("Saw event lasting %.0f cycles and %d ticks.  Ratio = %f
", 		  newt-oldt, (int) (newc-oldc), cpt); 		*/ 		e++; 		oldc = newc; 	    } 	    oldt = newt; 	}     }       /* ifdef added by Sanjit - 10/2001 */ #ifdef DEBUG     if (verbose) 	printf("Setting cyc_per_tick to %f
", cyc_per_tick); #endif } static clock_t start_tick = 0; void start_comp_counter()  {     struct tms t;     if (cyc_per_tick == 0.0) 	callibrate(1);     times(&t);     start_tick = t.tms_utime;     start_counter(); } double get_comp_counter()  {     double time = get_counter();     double ctime;     struct tms t;     clock_t ticks;     times(&t);     ticks = t.tms_utime - start_tick;     ctime = time - ticks*cyc_per_tick;     /*       printf("Measured %.0f cycles.  Ticks = %d.  Corrected %.0f cycles
",       time, (int) ticks, ctime);     */     return ctime; } clock.h /* Routines for using cycle counter */ /* Start the counter */ void start_counter(); /* Get # cycles since counter started */ double get_counter(); /* Measure overhead for counter */ double ovhd(); /* Determine clock rate of processor (using a default sleeptime) */ double mhz(int verbose); /* Determine clock rate of processor, having more control over accuracy */ double mhz_full(int verbose, int sleeptime); /** Special counters that compensate for timer interrupt overhead */ void start_comp_counter(); double get_comp_counter(); config.h /*********************************************************  * config.h - Configuration data for the driver.c program.  *********************************************************/ #ifndef _CONFIG_H_ #define _CONFIG_H_ /*   * CPEs for the baseline (naive) version of the rotate function that  * was handed out to the students. Rd is the measured CPE for a dxd  * image. Run the driver.c program on your system to get these  * numbers.    */ #define R64    14.7 #define R128   40.1 #define R256   46.4 #define R512   65.9 #define R1024  94.5 /*   * CPEs for the baseline (naive) version of the smooth function that  * was handed out to the students. Sd is the measure CPE for a dxd  * image. Run the driver.c program on your system to get these  * numbers.    */ #define S32   695 #define S64   698 #define S128  702 #define S256  717 #define S512  722 #endif /* _CONFIG_H_ */ defs.h /*  * driver.h - Various definitions for the CSO Final Exam.  *   * DO NOT MODIFY ANYTHING IN THIS FILE  */ #ifndef _DEFS_H_ #define _DEFS_H_ #include  #define RIDX(i,j,n) ((i)*(n)+(j)) typedef struct {   char *team;   char *name1, *email1;   char *name2, *email2; } team_t; extern team_t team; typedef struct {    unsigned short red;    unsigned short green;    unsigned short blue; } pixel; typedef void (*lab_test_func) (int, pixel*, pixel*); void smooth(int, pixel *, pixel *); void rotate(int, pixel *, pixel *); void register_rotate_functions(void); void register_smooth_functions(void); void add_smooth_function(lab_test_func, char*); void add_rotate_function(lab_test_func, char*); #endif /* _DEFS_H_ */ driver.c /*******************************************************************  *   * driver.c - Driver program for CSO Final Exam   *   * In kernels.c, students generate an arbitrary number of rotate and  * smooth test functions, which they then register with the driver  * program using the add_rotate_function() and add_smooth_function()  * functions.  *   * The driver program runs and measures the registered test functions  * and reports their performance.  *   ********************************************************************/ #include  #include  #include  #include  #include  #include  #include  #include  #include "fcyc.h" #include "defs.h" #include "config.h" /* Team structure that identifies the students */ extern team_t team;  /* Keep track of a number of different test functions */ #define MAX_BENCHMARKS 100 #define DIM_CNT 5 /* Misc constants */ #define BSIZE 32     /* cache block size in bytes */      #define MAX_DIM 1280 /* 1024 + 256 */ #define ODD_DIM 96   /* not a power of 2 */ /* fast versions of min and max */ #define min(a,b) (a  b ? a : b) /* This struct characterizes the results for one benchmark test */ typedef struct {     lab_test_func tfunct; /* The test function */     double cpes[DIM_CNT]; /* One CPE result for each dimension */     char *description;    /* ASCII description of the test function */     unsigned short valid; /* The function is tested if this

clock.c #include #include #include #include #include "clock.h" /* * Routines for using the cycle counter / / Detect whether running on Alpha */ #ifdef __alpha #define IS_ALPHA 1 #else #define...

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clock.c #include #include #include #include #include "clock.h" /* * Routines for using the cycle counter / / Detect whether running on Alpha */ #ifdef __alpha #define IS_ALPHA 1 #else #define...