Exemple #1
0
    def smooth(self, path='', parameters='dummy', span=0. ):
        """ Smooths SPECFEM2D kernels by convolving them with a Gaussian
        """
        from seisflows.tools.array import meshsmooth, stack

        #assert parameters == self.parameters

        # implementing nproc > 1 would be straightforward, but a bit tedious
        #assert self.mesh.nproc == 1

        kernels = self.load(path, suffix='_kernel')
        if not span:
            return kernels

        # set up grid
        _,x = loadbypar(PATH.MODEL_INIT, ['x'], 0)
        _,z = loadbypar(PATH.MODEL_INIT, ['z'], 0)
        mesh = stack(x[0], z[0])

        for key in self.parameters:
            kernels[key] = [meshsmooth(kernels[key][0], mesh, span)]

        unix.rm(path + '_nosmooth')
        unix.mv(path, path + '_nosmooth')
        self.save(path, kernels, suffix='_kernel')
Exemple #2
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    def load(self, path, prefix='reg1_', suffix='', verbose=False):
        """ reads SPECFEM model or kernel

          Models are stored in Fortran binary format and separated into multiple
          files according to material parameter and processor rank.
        """
        model = Model(self.parameters)
        minmax = Minmax(self.parameters)

        for iproc in range(self.mesh.nproc):
            # read database files
            keys, vals = loadbypar(path, self.parameters, iproc, prefix, suffix)
            for key, val in zip(keys, vals):
                model[key] += [val]

            minmax.update(keys, vals)

        if verbose:
            minmax.write(path, logpath=PATH.SUBMIT)

        return model