FRDM-K64F Code Share
Matrix Multiplication with 2 threads
Revision 0:27261dbc7ba7, committed 2014-08-08
- Comitter:
- agme
- Date:
- Fri Aug 08 00:56:15 2014 +0000
- Commit message:
- Initial Commit
Changed in this revision
diff -r 000000000000 -r 27261dbc7ba7 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Aug 08 00:56:15 2014 +0000
@@ -0,0 +1,56 @@
+#include "mbed.h"
+#include "rtos.h"
+
+
+double *A,*B,*C;
+int i,j,k,N;
+Serial pc(USBTX, USBRX); // tx, rx
+
+void process1_thread(void const *args)
+{
+ for(i=0; i<N/2; i++) {
+ for(j=0; j<N; j++) {
+ C[i*N+j]=0;
+ for(k=0; k<N; k++) {
+ C[i*N+j]= C[i*N+j] + A[i*N+k]*B[k+j*N];
+ }
+ }
+ }
+}
+
+void process2_thread(void const *args)
+{
+ for(i=N/2; i<N; i++) {
+ for(j=0; j<N; j++) {
+ C[i*N+j]=0;
+ for(k=0; k<N; k++) {
+ C[i*N+j]= C[i*N+j] + A[i*N+k]*B[k+j*N];
+ }
+ }
+ }
+}
+
+
+int main()
+{
+
+ N=10;
+ //Inicialize matrix
+ for(i=0; i<N; i++) {
+ for(j=0; j<N; j++) {
+ A[i*N+j]=1;
+ B[i+j*N]=1;
+ }
+ }
+
+ Thread thread1(process1_thread);
+ Thread thread2(process2_thread);
+
+ //Print Results
+ for (i=0;i<N;i++){
+ for(j=0;j<N;j++){
+ pc.printf("%d ",C[i*N+j]);
+ }
+ pc.printf("\n");
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r 27261dbc7ba7 mbed-rtos.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Fri Aug 08 00:56:15 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#34e80e862021
diff -r 000000000000 -r 27261dbc7ba7 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Aug 08 00:56:15 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6213f644d804 \ No newline at end of file