DPS915/M-N-M
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Team: M-N-M
Team Members
Potential Projects
| Project Name | Project Description | Status |
|---|---|---|
| C Compiler | Take the compilation process and transfer it to the GPU | failed |
| Galactic Collision Simulation | A 2D simulation of two galaxies colliding, with fully simulated gravity effects. | cannot benefit from parallel computing,already fast enough |
| Isomorphism of graphs | Check if two graphs are isomorphic in nature. This is a very straight forward program. | failed |
| Image Processing | Mathematical operations applied to images for colour negation, rotation, blurring effects, etc. | scrapped |
| Facial Recognition system | Speed up time taken to match face with database | already CUDA enabled |
| Steganography | Speed up the process of encrypting one type of file into another | Profiled |
| Prime number generator | Generate prime numbers | Profiled |
| LZW File compression | Compress files using Lempel-Ziv-Welch algorithm | Profiled |
Progress
Assignment 1
Mohamed Baig: Steganography using Steghide
- Steghide has certain dependencies that it uses to complete its function.
- Dependencies:
- libmash
- libcrypt
- libjpeg
- zlib
- Ran the Configure file to see if I have all the Dependencies
- Installed the all the dependencies
- Ran Configure again to generate Makefile in the src folder
- Altered the Makefile to enable profiling
- Altered some source files to avoid errors
AuSampleValues.cc
#include "AuSampleValues.h" // AuMuLawSampleValue template <> //My change const BYTE AuMuLawSampleValue::MinValue = 0 ; template <> //My change const BYTE AuMuLawSampleValue::MaxValue = BYTE_MAX ; // AuPCM8SampleValue template <> //My change const SBYTE AuPCM8SampleValue::MinValue = SBYTE_MIN ; template <> //My change const SBYTE AuPCM8SampleValue::MaxValue = SBYTE_MAX ; // AuPCM16SampleValue template <> //My change const SWORD16 AuPCM16SampleValue::MinValue = SWORD16_MIN ; template <> //My change const SWORD16 AuPCM16SampleValue::MaxValue = SWORD16_MAX ; // AuPCM32SampleValue template <> //My change const SWORD32 AuPCM32SampleValue::MinValue = SWORD32_MIN ; template <> //My change const SWORD32 AuPCM32SampleValue::MaxValue = SWORD32_MAX ;
AuData.h
#ifndef SH_AUDATA_H
#define SH_AUDATA_H
#include "BinaryIO.h"
#include "AudioData.h"
// AuMuLawAudioData
typedef AudioDataImpl<AuMuLaw,BYTE> AuMuLawAudioData ;
template <> //My change
inline BYTE AuMuLawAudioData::readValue (BinaryIO* io) const { return (io->read8()) ; }
template <> //My change
inline void AuMuLawAudioData::writeValue (BinaryIO* io, BYTE v) const { io->write8(v) ; }
// AuPCM8AudioData
typedef AudioDataImpl<AuPCM8,SBYTE> AuPCM8AudioData ;
template <> //My change
inline SBYTE AuPCM8AudioData::readValue (BinaryIO* io) const { return ((SBYTE) io->read8()) ; }
template <> //My change
inline void AuPCM8AudioData::writeValue (BinaryIO* io, SBYTE v) const { io->write8((BYTE) v) ; }
// AuPCM16AudioData
typedef AudioDataImpl<AuPCM16,SWORD16> AuPCM16AudioData ;
template <> //My change
inline SWORD16 AuPCM16AudioData::readValue (BinaryIO* io) const { return ((SWORD16) io->read16_be()) ; }
template <> //My change
inline void AuPCM16AudioData::writeValue (BinaryIO* io, SWORD16 v) const { io->write16_be((UWORD16) v) ; }
// AuPCM32AudioData
typedef AudioDataImpl<AuPCM32,SWORD32> AuPCM32AudioData ;
template <> //My change
inline SWORD32 AuPCM32AudioData::readValue (BinaryIO* io) const { return ((SWORD32) io->read32_be()) ; }
template <> //My change
inline void AuPCM32AudioData::writeValue (BinaryIO* io, SWORD32 v) const { io->write32_be((UWORD32) v) ; }
#endif // ndef SH_AUDATA_H
- The result of embedding kilobytes of text data into an image
Flat profile: Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls s/call s/call name 13.38 0.21 0.21 1318276 0.00 0.00 Selector::idxX(unsigned int, unsigned int, unsigned int*) const 11.47 0.39 0.18 4054789 0.00 0.00 Vertex::getDegree() const 9.55 0.54 0.15 659139 0.00 0.00 Selector::calculate(unsigned int) 7.64 0.66 0.12 659141 0.00 0.00 JpegFile::getEmbeddedValue(unsigned int) const 7.01 0.77 0.11 659139 0.00 0.00 __gnu_cxx::hashtable<std::pair<unsigned int const, unsigned int>, unsigned int, __gnu_cxx::hash<unsigned int>, std::_Select1st<std::pair<unsigned int const, unsigned int> >, std::equal_to<unsigned int>, std::allocator<unsigned int> >::resize(unsigned long) 6.37 0.87 0.10 328293 0.00 0.00 JpegFile::getSampleValue(unsigned int) const 5.73 0.96 0.09 1 0.09 0.09 Selector::~Selector() 3.82 1.02 0.06 1 0.06 0.09 JpegFile::read(BinaryIO*)
- The result of attempting to embed 1.7 GB of data into an image
Flat profile: Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls s/call s/call name 54.43 21.52 21.52 1192388169 0.00 0.00 BitString::_append(bool) 16.79 28.15 6.64 593200712 0.00 0.00 BitString::operator[](unsigned long) const 9.30 31.83 3.68 74898412 0.00 0.00 BitString::append(unsigned char, unsigned short) 4.78 33.72 1.89 3 0.63 6.41 BitString::append(BitString const&) 3.50 35.10 1.39 BitString::BitString(unsigned long) 1.91 35.86 0.76 BitString::clear() 1.29 36.37 0.51 1 0.51 37.26 Embedder::Embedder() 1.20 36.84 0.48 37823336 0.00 0.00 BinaryIO::eof() const
Assignment 1
Muhammad Ahsan: Prime Number Generator( 1,000,000,000 primes)
Flat profile Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls Ts/call Ts/call name 100.00 53.83 53.83 get_primes(unsigned long) 0.00 53.83 0.00 27 0.00 0.00 void std::vector<unsigned long, std::allocator<unsigned long> >::_M_emplace_back_aux<unsigned long const&>(unsigned long const&&&) 0.00 53.83 0.00 1 0.00 0.00 _GLOBAL__sub_I__Z10get_primesm
/** {{{ http://code.activestate.com/recipes/576559/ (r2) */
/*
Copyright (c) 2008 Florian Mayer
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#include <iostream>
#include <vector>
#include <string.h>
using namespace std;
vector<unsigned long> get_primes(unsigned long max){
vector<unsigned long> primes;
char *sieve;
sieve = new char[max/8+1];
// Fill sieve with 1
memset(sieve, 0xFF, (max/8+1) * sizeof(char));
for(unsigned long x = 2; x <= max; x++)
if(sieve[x/8] & (0x01 << (x % 8))){
primes.push_back(x);
// Is prime. Mark multiplicates.
for(unsigned long j = 2*x; j <= max; j += x)
sieve[j/8] &= ~(0x01 << (j % 8));
}
delete[] sieve;
return primes;
}
int main(void){
vector<unsigned long> primes;
primes = get_primes(1000000000);
// return 0;
// Print out result.
vector<unsigned long>::iterator it;
for(it=primes.begin(); it < primes.end(); it++)
cout << *it << " "<<endl;
cout << endl;
return 0;
}
/** end of http://code.activestate.com/recipes/576559/ }}} */
Assignment 1
Nitin Prakash Panicker: LZW File Compression
Flat profile: Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls ns/call ns/call name 99.46 48.19 48.19 CLZWCompressFile::Compress(char*, char*) 0.33 48.35 0.16 17122488 9.34 9.34 CLZWCompressFile::getc_src() 0.21 48.45 0.10 7095561 14.09 14.09 CLZWCompressFile::putc_comp(int)
Source Code for LZW File Compression
Assignment 2
Source code for prime number generator we will be putting on the gpu
# include <cmath> // This library enable the use of sqrt.
# include <iostream>
using namespace std;
void primenum(long double); // Prototype...
int c = 0;
int main(){
long double x = 0;
cout<<"\n This program will generate all prime numbers up to the"
<<"\n number you have entered below...\n";
cout<<"\n Please enter a number: ";
cin>> x;
cout<<"\n Here are all the prime numbers up to "<<x<<".\n";
primenum(x); //function invocation...
cout<<endl<<"\nThere are "<<c
<<" prime numbers less than or equal to "<<x<<".\n\n";
return 0;
}
// This function will determine the primenumbers up to num.
void primenum(long double x){
bool prime = true; // Calculates the square-root of 'x'
int number2;
number2 =(int) floor (sqrt (x));
for (int i = 1; i <= x; i++){
for ( int j = 2; j <= number2; j++){
if ( i!=j && i % j == 0 ){
prime = false;
break;
}
}
if (prime){
cout <<" "<<i<<" ";
c += 1;
}
prime = true;
}
getchar();
}
Version of prime generator running on GPU
# include <cmath> // This library enable the use of sqrt.
# include <iostream>
# include <cuda_runtime.h>
using namespace std;
void primenum(long double); // Prototype...
int c = 0;
int main(){
long double x = 0;
cout<<"\n This program will generate all prime numbers up to the"
<<"\n number you have entered below...\n";
cout<<"\n Please enter a number: ";
cin>> x;
cout<<"\n Here are all the prime numbers up to "<<x<<".\n";
primenum(x); //function invocation...
cout<<endl<<"\nThere are "<<c
<<" prime numbers less than or equal to "<<x<<".\n\n";
return 0;
}
// This function will determine the primenumbers up to num.
void primenum(long double x){
//Array to hold generated primes on host
int *primes_h = new int[x];
//Device array to hold the primes on the device
int *primes_d = new int[x];
//allocate device memory and initialize device memory
cudaMalloc((void**)&primes_d, x * sizeof(int));
cudaMemset(&primes_d,sizeof(int),x * sizeof(int);
//Kernal goes here
//error checking
//copy the array holding primes from device to host
cudaMemcpy(primes_h, primes_d, x * sizeof(int), cudaMemcpyDeviceToHost);
//display the primes
for(int i=0; i<x ; i++){
cout<<primes_h[i]<<endl;
}
//free allocated memory
delete [] primes_h;
cudaFree(primes_d);
getchar();
}
Almost Final version
# include <cmath> // This library enable the use of sqrt.
# include <iostream>
# include <ctime>
#include<iomanip>
#include<cstdlib>
# include <cuda_runtime.h>
//#include <times.h>
using namespace std;
inline clock_t getMilliSecs() {
return clock() / (CLOCKS_PER_SEC / 1000);
}
__global__ void primegen(bool prime, int number2,int x,int *primes_d)
{
int c = 0;
for (int i = 1; i <= x; i++)
{
for ( int j = 2; j <= number2; j++)
{
if ( i!=j && i % j == 0 )
{
prime = false;
break;
}
}
if (prime)
{
primes_d[c]=i;
c += 1;
}
prime = true;
}
}
void primenum(long double); // Prototype...
int main()
{
long double x = 0;
cout<<"\n This program will generate all prime numbers up to the"<<"\n number you have entered below...\n";
cout<<"\n Please enter a number: ";
cin>> x;
cout<<"\n Here are all the prime numbers up to "<<x<<".\n";
primenum(x); //function invocation...
//cout<<endl<<"\nThere are "<<c
//<<" prime numbers less than or equal to "<<x<<".\n\n";
return 0;
}
// This function will determine the primenumbers up to num.
void primenum(long double x)
{
bool prime = true;
//struct tms start_time, stop_time;
int number2;
number2 =(int) floor (sqrt (x));
clock_t start = getMilliSecs();
//Array to hold generated primes on host
int *primes_h = new int[(int)x];
//Device array to hold the primes on the device
int *primes_d = new int[(int)x];
//allocate device memory and initialize device memory
cudaMalloc((void**)&primes_d, (int)x * sizeof(int));
// cudaMalloc((void**)&c_d, sizeof(int));
cudaMemset(&primes_d,0,x * sizeof(int));
//error checking
cudaError_t error ;
//Kernal goes here
primegen<<<1,1>>>(prime,number2,(int)x,primes_d);
// extract error code from the kernel's execution
error = cudaGetLastError();
if (error != cudaSuccess) {
cout << cudaGetErrorString(error) << endl;
}
//copy the array holding primes from device to host
error =cudaMemcpy(primes_h, primes_d, ((int)x) * sizeof(int), cudaMemcpyDeviceToHost);
if (error != cudaSuccess) {
cout << cudaGetErrorString(error) << endl;
}
// cudaMemcpy(c_h, c_d, sizeof(int), cudaMemcpyDeviceToHost);
//display the primes
for(int i=0; i<(int)x ; i++){
if(primes_h[i]>=2 && primes_h[i]<=(int)x){
cout<<primes_h[i]<<endl;
}
}
cout << "Elapsed time: " << (getMilliSecs() - start) << "ms" << endl;
// cout<< "time: "<< (stop_s-start_s)/double(CLOCKS_PER_SEC)<<endl;
//free allocated memory
delete [] primes_h;
cudaFree(primes_d);
getchar();
}