Ensure software is usable by Xuan Yu

Details on how to do this task: Ensure software is usable

The code of PIHM is written in C language. PIHM uses the ODE solver known as CVODE developed at the Lawrence- Livermore National Laboratory. Please download and install the solver before compiling PIHM.

Please note that the solver for PIHM: SUNDIALS is updating, and PIHM is also updating. So please make sure you match the version of SUNDIALS with PIHM. In this study, we would like to use PIHM v2.2 and SUNDIALS 2.2.0.

1. Download SUNDIALS 2.2.0 and install it by three commands:
./configure
make
make install

2. Open the Makefile in PIHM_v2.2 folder, modify line 18 as "prefix = "your directory of SUNDIALS"". Compile PIHM by two commands:
make clean
make pihm

Now you will be able to run PIHMv2.2 on your machine.