.pynufft_hsa.py 文件源码

def _k2xx(self):
        """
        Private: the inverse FFT and image cropping (which is the reverse of _xx2k() method)
        """
        self.fft( self.k_Kd2, self.k_Kd2,inverse=True)
#         self.x_Nd._zero_fill()
        self.cMultiplyScalar(self.zero_scalar, self.x_Nd,  local_size=None, global_size=int(self.Ndprod ))
#         self.cSelect(self.queue, (self.Ndprod,), None,   self.KdGPUorder.data,  self.NdGPUorder.data,     self.k_Kd2.data, self.x_Nd.data )
        self.cSelect(  self.KdGPUorder,  self.NdGPUorder,     self.k_Kd2, self.x_Nd, local_size=None, global_size=int(self.Ndprod ))

        self.thr.synchronize()