mirror of
https://github.com/NVIDIA/cuda-samples.git
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304 lines
11 KiB
C++
304 lines
11 KiB
C++
/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "commonDefs.hpp"
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#define CU_INIT_UUID
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#include <cmath>
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#define UNITS_Time "ms"
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#define UNITS_BW "MB/s"
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#define KB_str "KB"
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#define MB_str "MB"
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struct resultsData {
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char resultsName[64];
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struct testResults *results;
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// this has MEMALLOC_TYPE_COUNT * results->numSizesToTest *
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// results->numMeasurements elements
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double **runTimesInMs[MEMALLOC_TYPE_COUNT];
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double *averageRunTimesInMs[MEMALLOC_TYPE_COUNT];
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double *stdDevRunTimesInMs[MEMALLOC_TYPE_COUNT];
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double *stdDevBandwidthInMBps[MEMALLOC_TYPE_COUNT];
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bool printOnlyInVerbose;
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bool reportAsBandwidth;
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struct resultsData *next;
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};
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struct testResults {
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char testName[64];
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unsigned int numMeasurements;
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unsigned long *sizesToTest;
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unsigned int numSizesToTest;
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struct resultsData *resultsDataHead;
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struct resultsData *resultsDataTail;
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};
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unsigned int findNumSizesToTest(unsigned int minSize, unsigned int maxSize,
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unsigned int multiplier) {
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unsigned int numSizesToTest = 0;
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while (minSize <= maxSize) {
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numSizesToTest++;
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minSize *= multiplier;
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}
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return numSizesToTest;
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}
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int compareDoubles(const void *ptr1, const void *ptr2) {
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return (*(double *)ptr1 > *(double *)ptr2) ? 1 : -1;
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}
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static inline double getTimeOrBandwidth(double runTimeInMs, unsigned long size,
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bool getBandwidth) {
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return (getBandwidth) ? (1000 * (size / runTimeInMs)) / ONE_MB : runTimeInMs;
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}
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void createAndInitTestResults(struct testResults **ptrResults,
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const char *testName,
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unsigned int numMeasurements,
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unsigned int numSizesToTest) {
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unsigned int i;
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struct testResults *results;
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results = (struct testResults *)malloc(sizeof(struct testResults));
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memset(results, 0, sizeof(struct testResults));
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strcpy(results->testName, testName);
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results->numMeasurements = numMeasurements;
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results->numSizesToTest = numSizesToTest;
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results->sizesToTest =
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(unsigned long *)malloc(numSizesToTest * sizeof(unsigned long));
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results->resultsDataHead = NULL;
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results->resultsDataTail = NULL;
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*ptrResults = results;
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}
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unsigned long *getPtrSizesToTest(struct testResults *results) {
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return results->sizesToTest;
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}
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void createResultDataAndAddToTestResults(struct resultsData **ptrData,
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struct testResults *results,
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const char *resultsName,
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bool printOnlyInVerbose,
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bool reportAsBandwidth) {
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unsigned int i, j;
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struct resultsData *data;
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data = (struct resultsData *)malloc(sizeof(struct resultsData));
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memset(data, 0, sizeof(struct resultsData));
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strcpy(data->resultsName, resultsName);
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data->results = results;
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for (i = 0; i < MEMALLOC_TYPE_COUNT; i++) {
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data->runTimesInMs[i] =
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(double **)malloc(results->numSizesToTest * sizeof(double *));
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for (j = 0; j < results->numSizesToTest; j++) {
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data->runTimesInMs[i][j] =
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(double *)malloc(results->numMeasurements * sizeof(double));
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}
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data->averageRunTimesInMs[i] =
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(double *)malloc(results->numSizesToTest * sizeof(double));
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data->stdDevRunTimesInMs[i] =
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(double *)malloc(results->numSizesToTest * sizeof(double));
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data->stdDevBandwidthInMBps[i] =
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(double *)malloc(results->numSizesToTest * sizeof(double));
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}
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data->printOnlyInVerbose = printOnlyInVerbose;
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data->reportAsBandwidth = reportAsBandwidth;
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data->next = NULL;
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*ptrData = data;
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if (results->resultsDataHead == NULL) {
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results->resultsDataHead = data;
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results->resultsDataTail = data;
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} else {
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results->resultsDataTail->next = data;
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results->resultsDataTail = data;
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}
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}
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double *getPtrRunTimesInMs(struct resultsData *data, int allocType,
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int sizeIndex) {
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return data->runTimesInMs[allocType][sizeIndex];
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}
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void freeTestResultsAndAllResultsData(struct testResults *results) {
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struct resultsData *data, *dataToFree;
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unsigned int i, j;
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for (data = results->resultsDataHead; data != NULL;) {
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for (i = 0; i < MEMALLOC_TYPE_COUNT; i++) {
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for (j = 0; j < results->numSizesToTest; j++) {
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free(data->runTimesInMs[i][j]);
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}
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free(data->runTimesInMs[i]);
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free(data->averageRunTimesInMs[i]);
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free(data->stdDevRunTimesInMs[i]);
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free(data->stdDevBandwidthInMBps[i]);
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}
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dataToFree = data;
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data = data->next;
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free(dataToFree);
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}
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free(results->sizesToTest);
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free(results);
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}
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void calculateAverageAndStdDev(double *pAverage, double *pStdDev,
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double *allResults, unsigned int count) {
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unsigned int i;
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double average = 0.0;
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double stdDev = 0.0;
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for (i = 0; i < count; i++) {
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average += allResults[i];
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}
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average /= count;
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for (i = 0; i < count; i++) {
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stdDev += (allResults[i] - average) * (allResults[i] - average);
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}
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stdDev /= count;
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stdDev = sqrt(stdDev);
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*pAverage = average;
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*pStdDev = (average == 0.0) ? 0.0 : ((100.0 * stdDev) / average);
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}
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void calculateStdDevBandwidth(double *pStdDev, double *allResults,
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unsigned int count, unsigned long size) {
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unsigned int i;
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double bandwidth;
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double average = 0.0;
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double stdDev = 0.0;
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for (i = 0; i < count; i++) {
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bandwidth = (1000 * (size / allResults[i])) / ONE_MB;
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average += bandwidth;
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}
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average /= count;
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for (i = 0; i < count; i++) {
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bandwidth = (1000 * (size / allResults[i])) / ONE_MB;
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stdDev += (bandwidth - average) * (bandwidth - average);
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}
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stdDev /= count;
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stdDev = sqrt(stdDev);
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*pStdDev = (average == 0.0) ? 0.0 : ((100.0 * stdDev) / average);
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}
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void printTimesInTableFormat(struct testResults *results,
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struct resultsData *data, bool printAverage,
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bool printStdDev) {
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unsigned int i, j;
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bool printStdDevBandwidth = printStdDev && data->reportAsBandwidth;
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printf("Size_KB");
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for (i = 0; i < MEMALLOC_TYPE_COUNT; i++) {
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printf("\t%7s", memAllocTypeShortStr[i]);
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}
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printf("\n");
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for (j = 0; j < results->numSizesToTest; j++) {
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printf("%lu", results->sizesToTest[j] / ONE_KB);
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for (i = 0; i < MEMALLOC_TYPE_COUNT; i++) {
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printf(data->reportAsBandwidth ? "\t%7.2lf" : "\t%7.3lf",
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printStdDevBandwidth
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? data->stdDevBandwidthInMBps[i][j]
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: getTimeOrBandwidth(
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printAverage ? data->averageRunTimesInMs[i][j]
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: data->stdDevRunTimesInMs[i][j],
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results->sizesToTest[j], data->reportAsBandwidth));
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}
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printf("\n");
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}
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}
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void printAllResultsInVerboseMode(struct testResults *results,
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struct resultsData *data) {
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unsigned int i, j, k;
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for (i = 0; i < MEMALLOC_TYPE_COUNT; i++) {
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printf("Verbose mode, printing all results for %s\n", memAllocTypeStr[i]);
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printf("Instance");
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for (j = 0; j < results->numSizesToTest; j++) {
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printf("\t%lu", results->sizesToTest[j] / ONE_KB);
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}
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printf("\n");
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for (k = 0; k < results->numMeasurements; k++) {
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printf("%u", k);
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for (j = 0; j < results->numSizesToTest; j++) {
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printf(data->reportAsBandwidth ? "\t%7.2lf" : "\t%7.3lf",
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getTimeOrBandwidth(data->runTimesInMs[i][j][k],
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results->sizesToTest[j],
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data->reportAsBandwidth));
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}
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printf("\n");
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}
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}
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}
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void printResults(struct testResults *results,
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bool print_launch_transfer_results,
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bool print_std_deviation) {
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char vulcanPrint[256];
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char resultNameNoSpaces[64];
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unsigned int i, j, k;
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struct resultsData *resultsIter;
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bool sizeGreaterThan1MB;
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for (resultsIter = results->resultsDataHead; resultsIter != NULL;
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resultsIter = resultsIter->next) {
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if (!verboseResults && resultsIter->printOnlyInVerbose) {
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continue;
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}
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if (!print_launch_transfer_results) {
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if (!(strcmp(resultsIter->resultsName, "Overall Time") == 0)) {
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continue;
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}
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}
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// regular print
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printf("\n%s For %s ", resultsIter->resultsName, results->testName);
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printf("\n");
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for (j = 0; j < results->numSizesToTest; j++) {
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for (i = 0; i < MEMALLOC_TYPE_COUNT; i++) {
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calculateAverageAndStdDev(&resultsIter->averageRunTimesInMs[i][j],
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&resultsIter->stdDevRunTimesInMs[i][j],
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resultsIter->runTimesInMs[i][j],
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results->numMeasurements);
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if (resultsIter->reportAsBandwidth) {
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calculateStdDevBandwidth(&resultsIter->stdDevBandwidthInMBps[i][j],
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resultsIter->runTimesInMs[i][j],
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results->numMeasurements,
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results->sizesToTest[j]);
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}
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}
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}
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printf("\nPrinting Average of %u measurements in (%s)\n",
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results->numMeasurements,
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resultsIter->reportAsBandwidth ? UNITS_BW : UNITS_Time);
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printTimesInTableFormat(results, resultsIter, true, false);
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if (print_std_deviation) {
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printf(
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"\nPrinting Standard Deviation as %% of average of %u measurements\n",
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results->numMeasurements);
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printTimesInTableFormat(results, resultsIter, false, true);
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}
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if (verboseResults) {
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printAllResultsInVerboseMode(results, resultsIter);
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}
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}
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}
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