incorrec output，Why？

[apapaxionga]

i wrote a simple program,but the output result are some strange float value instead of ten 10,Why?

global void LaunchKernel(float *d_outdata)

{

//d_outdata[threadIdx.x]=tex1Dfetch(tex,threadIdx.x);

int i=threadIdx.x;

if(i<10)

d_outdata[i]=10.0;

}

int main()

{

float *dev_data,*h_data;

h_data=(float*)malloc(sizeof(float)*10);

cutilSafeCall(cudaMalloc((void**)&dev_data,sizeof(float)*10));

LaunchKernel<<<1,10>>>(dev_data);

cutilSafeCall(cudaMemcpy(h_data,dev_data,10,cudaMemcpyDeviceToHost));

for(int i=0;i<10;i++)

{

    printf("%f  \n",h_data[i]);

}

return 0;

}

[alexish]

i wrote a simple program,but the output result are some strange float value instead of ten 10,Why?

In cudaMemcpy the size should be in bytes.

[apapaxionga]

In cudaMemcpy the size should be in bytes.

ooh! thank you !