minor: doc update with MPIMatrixMult

Author: mrava87

Makefile

@@ -78,7 +78,7 @@ doc_nccl:
 	rm tutorials/*_cupy.py tutorials/*_nccl.py
 
 docupdate:
-	cd docs && make html && cd ..
+	cd docs && NCCL_PYLOPS_MPI=0 make html && cd ..
 
 servedoc:
 	$(PYTHON) -m http.server --directory docs/build/

docs/source/gpu.rst

@@ -120,41 +120,68 @@ one MPI process. In fact, minor communications like those dealing with array-rel
    The CuPy and NCCL backend is in active development, with many examples not yet in the docs.
    You can find many `other examples <https://github.com/PyLops/pylops_notebooks/tree/master/developement-mpi/Cupy_MPI>`_ from the `PyLops Notebooks repository <https://github.com/PyLops/pylops_notebooks>`_.
 
-Supports for NCCL Backend
-----------------------------
-In the following, we provide a list of modules (i.e., operators and solvers) where we plan to support NCCL and the current status:
+Supports for CuPy and NCCL
+--------------------------
+In the following, we provide a list of modules (i.e., operators and solvers) with their current status (available on CPU+MPI, 
+GPU+MPI, and GPU+NCCL):
 
 .. list-table::
-   :widths: 50 25 
+   :widths: 50 25 25 25
    :header-rows: 1
 
-   * - modules
-     - NCCL supported
+   * - Operator/method
+     - CPU
+     - GPU+MPI
+     - GPU+NCCL
    * - :class:`pylops_mpi.DistributedArray`
-     - ✅ 
-   * - :class:`pylops_mpi.basicoperators.MPIVStack`
-     - ✅ 
+     - ✅
+     - ✅
+     - ✅
+   * - :class:`pylops_mpi.basicoperators.MPIMatrixMult`
+     - ✅
+     - 🔴
+     - 🔴
    * - :class:`pylops_mpi.basicoperators.MPIVStack`
-     - ✅ 
+     - ✅
+     - ✅
+     - ✅
    * - :class:`pylops_mpi.basicoperators.MPIHStack`
-     - ✅ 
+     - ✅
+     - ✅
+     - ✅
    * - :class:`pylops_mpi.basicoperators.MPIBlockDiag`
-     - ✅ 
-   * - :class:`pylops_mpi.basicoperators.MPIGradient`
-     - ✅ 
+     - ✅
+     - ✅
+     - ✅
    * - :class:`pylops_mpi.basicoperators.MPIFirstDerivative`
+     - ✅
+     - ✅
      - ✅ 
    * - :class:`pylops_mpi.basicoperators.MPISecondDerivative`
-     - ✅ 
+     - ✅
+     - ✅
+     - ✅
    * - :class:`pylops_mpi.basicoperators.MPILaplacian`
-     - ✅ 
+     - ✅
+     - ✅
+     - ✅
+   * - :class:`pylops_mpi.basicoperators.MPIGradient`
+     - ✅
+     - ✅
+     - ✅
+   * - :class:`pylops_mpi.signalprocessing.MPIFredhoml1`
+     - ✅
+     - ✅
+     - ✅
+   * - :class:`pylops_mpi.waveeqprocessing.MPIMDC`
+     - ✅
+     - ✅
+     - ✅
    * - :class:`pylops_mpi.optimization.basic.cg`
-     - ✅ 
+     - ✅
+     - ✅
+     - ✅
    * - :class:`pylops_mpi.optimization.basic.cgls`
-     - ✅ 
-   * - :class:`pylops_mpi.signalprocessing.Fredhoml1`
-     - ✅ 
-   * - Complex Numeric Data Type for NCCL 
-     - ✅ 
-   * - ISTA Solver
-     - Planned ⏳
+     - ✅
+     - ✅
+     - ✅