https://github.com/arodr967/multithreading_fun
Multithreading in C.
https://github.com/arodr967/multithreading_fun
c-programming matrix-multiplication multithreading parallel-programming scheduling scheduling-algorithms synchronization
Last synced: 3 months ago
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Multithreading in C.
- Host: GitHub
- URL: https://github.com/arodr967/multithreading_fun
- Owner: arodr967
- Created: 2017-07-01T02:29:24.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2017-07-10T03:46:48.000Z (almost 8 years ago)
- Last Synced: 2025-02-07T19:34:46.360Z (5 months ago)
- Topics: c-programming, matrix-multiplication, multithreading, parallel-programming, scheduling, scheduling-algorithms, synchronization
- Language: C
- Size: 851 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Multithreaded Programming and Synchronization
- [Part 1: Simple Multi-threaded Programming using Pthreads](#part-1-simple-multi-threaded-programming-using-pthreads)
- [Part 2: Multi-threaded/Parallel Programming using OpenMP](#part-2-multi-threadedparallel-programming-using-openmp)
- [Part 3: OpenMP Solution for Queue Scheduling Problem in Task 1.3](#part-3-openmp-solution-for-queue-scheduling-problem-in-task-13)
## Part 1: Simple Multi-threaded Programming using Pthreads
Files found for part 1 are in the `part_1/` directory.
### Tasks 1 & 2
Tasks 1 and 2 can be found in `task1_2.c`.
#### Compile & Run _without_ Synchronization
1. `gcc -pthread task1_2.c -o task1_2`
2. `./task1_2 `
Place output into a file by:
`./task1_2 > task1_1_results/_threads_results.txt`
> Example: `./task1_2 200 > task1_1_results/200_threads_results.txt`
_Some output files have already been added from previous executions._
#### Compile & Run _with_ Synchronization
1. `gcc -pthread -Wall -D PTHREAD_SYNC task1_2.c -o task1_2_sync`
2. `./task1_2_sync `
> NOTE: Some warnings might appear but they will not prevent the program from executing.
Place output into a file by:
`./task1_2_sync > task1_2_results/_threads_results.txt`
> Example: `./task1_2_sync 200 > task1_2_results/200_threads_results.txt`
_Some output files have already been added from previous executions._
### Task 3
Task 3 can be found in `task1_3.c`
#### Compile & Run
1. `gcc -pthread -lm task1_3.c -o task1_3`
2. `./task1_3 `
## Part 2: Multi-threaded/Parallel Programming using OpenMP
Files found for part 2 are in the `part_2/` directory.
### Tasks 1, 2, and 3
- Task 1 can be found in `OpenMP/helloworld.c`
- Task 2 can be found in `task2_2.c`
- Task 3 can be found in `task2_3.c`
#### Compile & Run
Any of the files above an be compiled and run the following way:
1. `gcc -fopenmp task2_2.c -o task2_2`
2. `./task2_2`
### Task 4
Task 4 can be found separated as 4 different files.
- `task2_4_original.c` is the original code that is given on the assignment.
- `task2_4_outer.c` is the parallelized code with only the outer for loop parallelized.
- `task2_4_middle.c` is the parallelized code with only the middle for loop parallelized.
- `task2_4_both.c` is the parallelized code with both the outer and middle loops parallelized.
#### Compile & Run
Any of the files above an be compiled and run the following way:
1. `gcc -fopenmp task2_4_original.c -o task2_4_original`
2. `./task2_4_original`
## Part 3: OpenMP Solution for Queue Scheduling Problem in Task 1.3
File found for part 3 are in `part_3/task1_3_OpenMP.c`
#### Compile & Run
1. `gcc -fopenmp -lm task1_3_OpenMP.c -o task1_3_OpenMP`
2. `./task1_3_OpenMP `