Partvec-Utility

This repository contains two separate programs, and necessary files to compile them::

part_to_perm.c: This program converts a partition vector, represented as a list of integers, into a permutation vector.
perm_to_mat.c: This program applies a permutation vector to a matrix read in Matrix Market format and outputs a new matrix with rows reordered with respect to the provided permutation vector.

Compilation and Usage of part_to_perm.c

Compilation: Compile the code using GCC.
Execution: Run the program with the path to the partition vector file "./a.out [path-to-partvec]".
Output: The program generates a file containing the permutation vector. The output filename is created from the input filename with the last 8 characters altered to end in 'permvec' (program assumes the provided partitioning vector file name ends with "partvec").

Notes

Make sure that the input file format is correct and contains one integer per line.
Future versions of this program may include optimisations.

Compilation and Usage of perm_to_mat.c

Compilation: Compile the code using GCC.
Execution: Run the program by providing the path to the Matrix Market file and the permutation vector file "./a.out [path-to-matrix] [path-to-permvec]".
Output: The program generates a file containing the permutated matrix. The output filename is created from the input matrix filename with _reordered.txt added to the end.

Notes

The input matrix must be in the Matrix Market Format, and the permutation vector file should contain one integer per line.
The program does not check whether the provided permutation vector contains invalid or contradicting permutations.
The program currently outputs the resulting matrix as a text file instead of Matrix Market Format.
Future versions of this program may include optimisations.