99 lines
2.0 KiB
C++
99 lines
2.0 KiB
C++
#include <iomanip>
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#include <iostream>
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#include <cstring>
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#include <limits>
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#define VERSION_STRING "0.0"
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extern void parseArguments(int argc, char *argv[]);
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extern void listDevices(void);
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extern int ARRAY_SIZE;
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extern int NTIMES;
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extern bool useFloat;
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extern int deviceIndex;
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// Exceptions
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struct invaliddevice : public std::exception
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{
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virtual const char * what () const throw ()
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{
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return "Chosen device index is invalid";
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}
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};
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struct badntimes : public std::exception
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{
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virtual const char * what () const throw ()
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{
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return "Chosen number of times is invalid, must be >= 2";
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}
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};
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struct badarraysize : public std::exception
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{
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virtual const char * what () const throw ()
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{
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return "Array size must be >= 1024";
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}
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};
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template < typename T >
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void check_solution(void* a_in, void* b_in, void* c_in)
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{
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// Generate correct solution
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T golda = 1.0;
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T goldb = 2.0;
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T goldc = 0.0;
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T * a = static_cast<T*>(a_in);
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T * b = static_cast<T*>(b_in);
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T * c = static_cast<T*>(c_in);
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const T scalar = 3.0;
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for (unsigned int i = 0; i < NTIMES; i++)
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{
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// Double
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goldc = golda;
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goldb = scalar * goldc;
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goldc = golda + goldb;
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golda = goldb + scalar * goldc;
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}
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// Calculate average error
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double erra = 0.0;
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double errb = 0.0;
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double errc = 0.0;
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for (unsigned int i = 0; i < ARRAY_SIZE; i++)
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{
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erra += fabs(a[i] - golda);
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errb += fabs(b[i] - goldb);
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errc += fabs(c[i] - goldc);
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}
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erra /= ARRAY_SIZE;
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errb /= ARRAY_SIZE;
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errc /= ARRAY_SIZE;
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double epsi = std::numeric_limits<T>::epsilon() * 100;
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if (erra > epsi)
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std::cout
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<< "Validation failed on a[]. Average error " << erra
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<< std::endl;
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if (errb > epsi)
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std::cout
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<< "Validation failed on b[]. Average error " << errb
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<< std::endl;
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if (errc > epsi)
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std::cout
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<< "Validation failed on c[]. Average error " << errc
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<< std::endl;
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}
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