 MANTA employs a highly parallelized GPU implementation that is fast enough to run simulations on large-scale demand and networks within a few minutes.
<clarity>  MANTA employs a highly parallelized GPU implementation that is fast enough to run simulations on large-scale demand and networks within a few minutes.
 MANTA employs a highly parallelized GPU implementation that is capable of running metropolitan-scale simulations within a few minutes.