CUFFT_ALLOC_FAILED Error in nsight eclipse

Question

I wrote a simple cuda file that successfully build in visual studio 2010 & nsight eclipse

the code is here

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>

#include <cufft.h>
#include <cutil_inline.h>

typedef float2 Complex; 

int main(int argc, char** argv) 
{
     const int NX = 1024;

 const int BATCH = 90000;

     const int SIGNAL_SIZE = NX * BATCH;

     Complex* h_signal = (Complex*)malloc(sizeof(Complex) * SIGNAL_SIZE);

     for (unsigned int i = 0; i < SIGNAL_SIZE; ++i) {
    h_signal[i].x = rand() / (float)RAND_MAX;
    h_signal[i].y = 0;
}

Complex* d_signal;
cutilSafeCall(cudaMalloc((void**)&d_signal, sizeof(Complex)*SIGNAL_SIZE));


cutilSafeCall(cudaMemcpy(d_signal, h_signal, sizeof(Complex)*SIGNAL_SIZE,
                          cudaMemcpyHostToDevice));

cufftHandle plan;
cufftSafeCall(cufftPlan1d(&plan, NX, CUFFT_C2C, BATCH));


cufftSafeCall(cufftExecC2C(plan, (cufftComplex *)d_signal, (cufftComplex *)d_signal,   CUFFT_FORWARD));

cutilSafeCall(cudaMemcpy(h_signal, d_signal, SIGNAL_SIZE*sizeof(Complex),
                          cudaMemcpyDeviceToHost));

//Destroy CUFFT context
cufftSafeCall(cufftDestroy(plan));

// cleanup memory
free(h_signal);
cutilSafeCall(cudaFree(d_signal));

cudaThreadExit();

 cutilExit(argc, argv);
}

I changed NX & BATCH four times for example with

const int NX = 1024;

const int BATCH = 90000;

const int SIGNAL_SIZE = NX * BATCH;

cufftHandle plan;
cufftPlan1d(&plan, NX, CUFFT_C2C, BATCH);

I successfully run Sample in visual studio 2010 & 2012 (windows 7 64 bit) but in ubuntu 12.04 (32 bit) nsight eclipse give this Error

CUFFT_ALLOC_FAILED

for cufftPlan1d function

I change BATCH to 80000 (NX = 1024) & this error occurred in ubuntu but in visual studio 2010 i run without any errors!

I use Cuda toolkit 5.5 that has this feature:

Transform sizes up to 128 million elements in single precision

and 80000 * 1024 = 81920000 elements < 128 million elements

I change BATCH to 8000 (NX = 1024) & that error does not occured in ubuntu

Please Help Me

thanks

Note that cudaThreadExit() has been deprecated in favour of cudaDeviceReset(), see this document — Vitality
I have a GTX 650 Ti boost that has 2 GB RAM. I build and run samples in same machine (first in windows 7 & visual studio 2010 then in ubuntu 12.04) when i set Nx = 1024 & Batch = 90000 nsight eclipse has an CUFFT_ALLOC_FAILED error but in visual studio i run it without any errors! — user1210922

Vitality Vitality · Accepted Answer · 2014-01-01T22:52:19

You can estimate the amount of memory required by your cuFFT call using cufftEstimate1d.

#include <conio.h>

#include <cufft.h>

#define cufftSafeCall(err)      __cufftSafeCall(err, __FILE__, __LINE__)
inline void __cufftSafeCall(cufftResult err, const char *file, const int line)
{
    if( CUFFT_SUCCESS != err) {
    fprintf(stderr, "cufftSafeCall() CUFFT error in file <%s>, line %i.\n",
        file, line);
    getch(); exit(-1);
    }
}


int main() {

    const int NX = 1024;

    const int BATCH = 100000;

    size_t workSize;

    cufftSafeCall(cufftEstimate1d(NX, CUFFT_C2C, BATCH, &workSize));

    printf("%i\n",workSize);

    getchar();

}

CUFFT_ALLOC_FAILED Error in nsight eclipse

2 Answers