Update documentation to reflect new taskfarm flag

docs/source/accelerators.rst

@@ -29,7 +29,7 @@ By default, gprMax will try to determine and use the maximum number of OpenMP th
 MPI
 ===
 
-By default, the MPI task farm functionality is turned off. It can be used with the ``-mpi`` command line option, which specifies the total number of MPI tasks, i.e. master + workers, for the MPI task farm. This option is most usefully combined with ``-n`` to allow individual models to be farmed out using an MPI task farm, e.g. to create a B-scan with 60 traces and use MPI to farm out each trace: ``(gprMax)$ python -m gprMax examples/cylinder_Bscan_2D.in -n 60 -mpi 61``.
+By default, the MPI task farm functionality is turned off. It can be used with the ``-taskfarm`` command line option, which specifies the total number of MPI tasks, i.e. master + workers, for the MPI task farm. This option is most usefully combined with ``-n`` to allow individual models to be farmed out using an MPI task farm, e.g. to create a B-scan with 60 traces and use MPI to farm out each trace: ``(gprMax)$ python -m gprMax examples/cylinder_Bscan_2D.in -n 60 -taskfarm 61``.
 
 Software required
 -----------------
@@ -117,8 +117,8 @@ For example, to run a B-scan that contains 60 A-scans (traces) on a system with
 
 .. code-block:: none
 
-    (gprMax)$ python -m gprMax examples/cylinder_Bscan_2D.in -n 60 -mpi 5 -gpu 0 1 2 3
+    (gprMax)$ python -m gprMax examples/cylinder_Bscan_2D.in -n 60 -taskfarm 5 -gpu 0 1 2 3
 
 .. note::
 
-    The argument given with ``-mpi`` is the number of MPI tasks, i.e. master + workers, for the MPI task farm. So in this case, 1 master (CPU) and 4 workers (GPU cards). The integers given with the ``-gpu`` argument are the NVIDIA CUDA device IDs for the specific GPU cards to be used.
+    The argument given with ``-taskfarm`` is the number of MPI tasks, i.e. master + workers, for the MPI task farm. So in this case, 1 master (CPU) and 4 workers (GPU cards). The integers given with the ``-gpu`` argument are the NVIDIA CUDA device IDs for the specific GPU cards to be used.

docs/source/hpc.rst

@@ -34,7 +34,7 @@ Here is an example of a job script for running models, e.g. A-scans to make a B-
 
 In this example, 10 models will be distributed as independent tasks in an HPC environment using MPI.
 
-The ``-mpi`` argument is passed to gprMax which takes the number of MPI tasks to run. This should be the number of models (worker tasks) plus one extra for the master task.
+The ``-taskfarm`` argument is passed to gprMax which takes the number of MPI tasks to run. This should be the number of models (worker tasks) plus one extra for the master task.
 
 The ``NSLOTS`` variable which is required to set the total number of slots/cores for the parallel environment ``-pe mpi`` is usually the number of MPI tasks multiplied by the number of OpenMP threads per task. In this example the number of MPI tasks is 11 and the number of OpenMP threads per task is 16, so 176 slots are required.