- Category:
- MPI
- Tags:
-
[C/C++]
[源码]
- File Size:
- 2kb
- Update:
- 2012-11-26
- Downloads:
- 0 Times
- Uploaded by:
- lium000
Description: Distributed Image Processing Filter
Write a program that blurs an image file in a parallelized computation. Whenever possible, use collective
operations (MPI_Scatter, MPI_Gather). The root process reads the image file from the NFS
server, distributes the data of the file among all processes, and gathers the results into the output file.
Each processor should receive a part of the image only. The image file is provided as a raw image file.
It can be read using the C function fread() with a single call and written with the single call of the
function fwrite(). The image is given as an array of h rows, a row has 1280 pixels , where each pixel
is one unsigned char grey value. You may assume that h is lower than or equal to 8192.
a) Write an MPI program in which the root process prepairs the data, so that all other processes
get their data by exactly one MPI_Scatter operation.
File list (Check if you may need any files):
image.c
Download