cuFFT in Driver API

[mariuszekpl]

[b]Fixed!

My mistake: I updated Cuda Toolkit to 4.1 but don’t update driver.

After update driver all works OK

[/b]

I tested CUFFT in “driver API”

It works OK in windows XP , but when i try run application in new windows

it don’t work.

It is my test application, what is problem ?

cuFFT works in “Driver API” ?

// includes, system

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <math.h>

// includes, project

#include <cuda.h>

#include <cufft.h>

int testError(int p_fu)

{

  printf("Error = %d\n",p_fu);

  return p_fu;	  

}

////////////////////////////////////////////////////////////////////////////////

// Program main

////////////////////////////////////////////////////////////////////////////////

int main(int argc, char** argv) 

{

	int  new_size = 4096;

	int error=0;

	int i;

	cuComplex tab[4096];

	cuComplex tab2[4096];

	for(i=0; i<4096;i++)

	{

		tab[i].x = float(i);

		tab[i].y = 0;

		tab2[i].x = 0.0;

		tab2[i].y = 0.0;

	}

CUdevice hDevice=0;

	CUdeviceptr device_a=0;

	CUdeviceptr device_b=0;

	CUdeviceptr device_c=0;

    CUcontext hContext=0;

cuInit(0);

	cuDeviceGet( &hDevice ,0);

    cuCtxCreate( &hContext, 0,hDevice);

error = testError(cuMemAlloc(&device_a,sizeof(cufftComplex)*4096));

    error = testError(cuMemAlloc(&device_b,sizeof(cufftComplex)*4096));

    error = testError(cuMemAlloc(&device_c,sizeof(cufftComplex)*4096));

error = testError(cuMemcpyHtoD(device_a, &tab[0], sizeof(cufftComplex)*4096));

// CUFFT plan

    cufftHandle plan;

    error = testError(cufftPlan1d(&plan, new_size, CUFFT_C2C, 1));

error = testError(cufftExecC2C( plan, (cufftComplex *)device_a, (cufftComplex *)device_b, CUFFT_FORWARD));

    error = testError(cufftExecC2C( plan,(cufftComplex *)device_b, (cufftComplex *)device_c, CUFFT_INVERSE));

	error = testError(cuMemcpyDtoH(&tab2[0],device_c, sizeof(cufftComplex)*4096));

	for(i=0; i<4096;i++)

	{

		printf("[%d] %f ",i, tab2[i].x / 4096);

	}

return 0;

}