add use case

README.md

@@ -34,6 +34,10 @@ Along with the boundary conditions at the boundary nodes, we have a
 linear system for U. We can apply the Jacobi iteration to estimate the
 solution to the linear system.
 
+Usage of the application: `poisson use_case`\
+ `poisson 0` (tiny)\
+ `poisson 1` (small)\
+ `poisson 2` (large)
 
 ## STEP 0: Create git repository (10%)
 
@@ -45,7 +49,7 @@ Provide compilation script for your application (the script should run independe
 
 ## STEP 2:  Analysis of the application (10%)
 
-Use `Arm map` (module Forge) to analyze a sequential run of your application with given use case (`tests/large`). Identify the most time consuming regions that can be parallelized by OpenMP.
+Use `Arm map` (module Forge) to analyze a sequential run of your application with given use case (`large`). Identify the most time consuming regions that can be parallelized by OpenMP.
 
 ## STEP 3:  Use OpenMP to run the application in parallel (10%)
 
@@ -60,8 +64,7 @@ Create script that automatically check correctness of your application for at le
 1. Implement time measurement for all parallel regions using omp_get_wtime(). 
 2. Create script for run strong scalability measurement (PBS script).
 3. Evaluate strong scalability of measured regions up to 128 threads and different thread affinity (compact, scatter, balanced, none).
-4. Evaluate behaviour for domain specific parameters of your applications (project dependent, maybe none). (Blocking implementation for this project)
-5. Prepare charts for all measurements.
+4. Prepare charts for all measurements.
 
 ## STEP 6:  Presentation of your project (10%)
 

src/main.cpp

@@ -74,7 +74,7 @@ int main(int argc, char* argv[])
 
 	//Check args
 	if (argc < 2) {
-		printf("USAGE:\tpoisson 0 (tiny)\n\tpoisson 1 (large)\n");
+		printf("USAGE:\tpoisson 0 (tiny)\n\tpoisson 1 (small)\n\tpoisson 2 (large)\n");
 		return 0;
 	}
 
@@ -86,8 +86,14 @@ int main(int argc, char* argv[])
 		ny = 16;
 		it_max = 1000;
 	}
-	//large
+	//small
 	if (type == 1) {
+		nx = 64;
+		ny = 64;
+		it_max = 100000;
+	}    
+	//large
+	if (type == 2) {
 		nx = 256;
 		ny = 256;
 		it_max = 100000;