Parallel Computing Assignment-3
Run and Input: mpiexec -np [number of processes] .\P1.exe [Length of Array N]
Run and Input: mpiexec -np 10 .\P1.exe 5
Output: SUM is 264
Run and Input: mpiexec -np [number of processes] .\P2.exe [Length of Array N]
Run and Input: mpiexec -np 4 .\P2.exe 5
Output:
RANK is 0
PREIVIOS VALUES 0 0 0 0 0
LATEST VALUES 3 3 3 3 3
--------------------
RANK is 1
PREIVIOS VALUES 1 1 1 1 1
LATEST VALUES 0 0 0 0 0
--------------------
RANK is 2
PREIVIOS VALUES 2 2 2 2 2
LATEST VALUES 1 1 1 1 1
--------------------
RANK is 3
PREIVIOS VALUES 3 3 3 3 3
LATEST VALUES 2 2 2 2 2
--------------------
Run and Input: mpiexec -np [number of processes] .\P3.exe [Length of Array N]
Run and Input: mpiexec -np 4 .\P3.exe 5
Output: ACTUAL SUM and MPI SUM 45 45
For Block : 0
For Cyclic: 1
For Block-Cyclic: 2
Run and Input: mpiexec -np [number of processes] .\P4.exe [Length of Array N] [Distribution]
Run and Input: mpiexec -np 4 .\P4.exe 5 1
Output: ACTUAL SUM and MPI SUM 45 45
Compile: g++ -std=c++14 P5.cpp
Run and Input: a.exe [Number of Threads nthreads] [Length of array N]
Run and Input: a.exe 4 100000
Output:
Sum is 1639203031
Time take is 1995 us
----------------
Compile: g++ -std=c++14 P6.cpp -o P6 -fopenmp
Run and Input: P6.exe [Number of Threads nthreads] [Length of array N]
Run and Input: P6.exe 4 100000
Output:
Sum is 1637062792
Time take is 1824 us
----------------
Run and Input: mpiexec -np [number of processes] .\P7.exe [Length of Array N]
Run and Input: mpiexec -np 4 .\P7.exe 1000
Output: Sum is 49226
Run and Input: mpiexec -np [number of processes] .\P8.exe [Size of Vector N]
Run and Input: mpiexec -np 4 .\P8.exe 1000
Output: SCALAR VALUE is 844762
Compile: g++ -std=c++14 P9.cpp -o P9 -fopenmp
Run and Input: P9.exe [Number of Threads nthreads] [M] [N] [P]
Run and Input: P9.exe 2 4 4 4
Output:
MATRIX A:
57 99 3 16
92 91 89 51
15 68 98 51
45 51 19 49
---------------
MATRIX B:
8 77 65 89
55 83 77 14
24 91 31 43
48 97 6 32
---------------
MATRIX C:
6741 14431 11517 7100
10325 27683 16052 14921
8660 20664 9555 8133
5973 14180 7735 7104
---------------
Time take is 1029 us
----------------
Run and Input: mpiexec -np [number of processes] .\P10.exe [Length of Array N] [Number of Iteration M]
Run and Input: mpiexec -np 4 .\P10.exe 4 2
Output:
RANK is 3
7 29 9 12
-----------------
RANK is 3
46 16 33 35
-----------------
RANK is 2
12 4 17 1
-----------------
RANK is 2
12 4 17 1
-----------------
RANK is 1
25 34 25 43
-----------------
RANK is 1
25 34 25 43
-----------------
RANK is 0
46 16 33 35
-----------------
[ 0 => 0 ]
[ 0 => 3 ]
RANK is 0
46 16 33 35
-----------------
In this code number of threads is 4 for each process and we are printing a sum by incremeting it by 5 using for loop, for each process sum should be 20. And it is printing 20 using iittp_barrier.
Run and Input: mpiexec -np [number of processes] .\P11.exe
Run and Input: mpiexec -np 4 .\P11.exe
Output:
202020
20
2020
20
20
202020
20
20
20
20
20