_fftIn = fftw_alloc_complex(Nfft); _fftOut = fftw_alloc_complex(Nfft); _fftPlan = fftw_plan_dft_1d(static_cast(Nfft), _fftIn, _fftOut, FFTW_FORWARD, FFTW_ESTIMATE); _ifftPlan = fftw_plan_dft_1d(static_cast(Nfft), _fftIn, _fftOut, FFTW_BACKWARD, FFTW_ESTIMATE); } void DFT_...
fftwf_plan plan1,plan2; complex*w;float*t;inti; t=alloc1float(10); w=alloc1complex(10); plan1=fftwf_plan_dft_r2c_1d(10,t,w,FFTW_ESTIMATE); plan2=fftwf_plan_dft_c2r_1d(10,w,t,FFTW_ESTIMATE);for(i=0;i<10;++i) { t[i]=i; } fftwf_execute(plan1); fftwf_execute(plan...
real(C_DOUBLE), pointer, dimension(:,:,:) :: u_r complex(C_DOUBLE_COMPLEX), pointer, dimension(:,:,:) :: u_c one for real and other for complex data. I allocate my data using fftw_alloc_real i.e. type(C_PTR) :: ptr_u ptr_u = fftw_alloc_real(2*alloc_size) and th...
.text+0x698b): undefined reference to `fftw_alloc_complex'make[1]: *** [lapw0_mpi] Error ...
COMPLEX** alloccomplex(COMPLEX **mem, int h, int w){ mem = (COMPLEX **)malloc(sizeof(COMPLEX *) * h);//分配指针数组 mem[0] = (COMPLEX *)malloc(sizeof(COMPLEX) * h * w);//⼀次性分配所有空间 for (int i = 1; i<h; i++)//注意从1开始 { mem[i] = mem[i - 1] + ...
// allocate data local_data_ = fftw_alloc_complex(local_size_); if (local_data_ == nullptr) { std::cerr << "Fatal error: test data could not be allocated for!" << std::endl; MPI_Abort(MPI_COMM_WORLD, MPI_ERR_OTHER); } // create a pl...
it installs the latest version of FFTW available at the time (2010), which is FFTW 3.2.1. As a result, the code doesn't compile, since we use the newfangledfftw_alloc_complexinstead of good oldfftw_malloc. If we fix that, we run into a larger problem: OpenMP support was introduced ...
一个程序链接到一个FFTW库编译SIMD支持可以获得一个不可忽略的加速最复杂的和r2 c/c2 r变换。然而，...
}//申请动态内存COMPLEX** alloccomplex(COMPLEX **mem,inth,intw) { mem= (COMPLEX **)malloc(sizeof(COMPLEX *) * h);//分配指针数组mem[0] = (COMPLEX *)malloc(sizeof(COMPLEX) * h * w);//一次性分配所有空间for(inti =1; i<h; i++)//注意从1开始{ ...
一个程序链接到一个FFTW库编译SIMD支持可以获得一个不可忽略的加速最复杂的和r2 c/c2 r变换。然而，...