Currently, in pspc/ and pspg/, each Block object has it's own FFT object. This should be changed so that all blocks can share a common FFT object that is owned by the main System. To do so, we must pass a reference to the FFT as well as the Mesh to the Mixture, and have it pass references to all blocks.
Currently, in pspc/ and pspg/, each Block object has it's own FFT object. This should be changed so that all blocks can share a common FFT object that is owned by the main System. To do so, we must pass a reference to the FFT as well as the Mesh to the Mixture, and have it pass references to all blocks.