Similar to challenge problem 69, http://hpcuniversity.org/students/weeklyChallenge/69/, your task is to implement NetCDF output in an existing parallel program, namely that solved by challenge problem 83, http://hpcuniversity.org/students/weeklyChallenge/83/. It is recommended you familiarize yourself with these challenge problems first.

The "Hybrid Parallel Acceleration solution" file below contains the code you should modify. A working example of a NetCDF program is also provided in the "netCDF solution zip file" below. You should use this second file as reference when updating the first file.

The MPI process with a rank of 0 should be the one initializing, finalizing, and writing data using NetCDF. The same data that is output using printf should be output to a file using NetCDF.

The resulting program should generate a file called "accel-data.nc" that can be viewed using the ncdump utility provided by NetCDF. The "accel-data sample file" below is an example file generated by a working program running with 2 MPI processes, each with 3 OpenMP threads.