Copy and Paste  -   An Application to Copy/Paste Text
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S.No 5728 Name ..... Date/Time 20-Jun-2023 08:38:08 AM Copy text from below import numpy as np N = 100 # Size of the matrices # Generate random matrices A and B A = np.random.rand(N, N) B = np.random.rand(N, N) # Sequential matrix multiplication def matrix_multiplication(A, B): rows_A, cols_A = A.shape rows_B, cols_B = B.shape # Check if matrices can be multiplied if cols_A != rows_B: raise ValueError("Matrices dimensions are not compatible for multiplication.") # Initialize resulting matrix C C = np.zeros((rows_A, cols_B)) # Perform matrix multiplication for i in range(rows_A): for j in range(cols_B): for k in range(cols_A): C[i][j] += A[i][k] * B[k][j] return C # Perform matrix multiplication using sequential algorithm C_seq = matrix_multiplication(A, B) # Print the resulting matrix C print("Sequential matrix multiplication:") print(C_seq) from mpi4py import MPI # Initialize MPI comm = MPI.COMM_WORLD num_processes = comm.Get_size() rank = comm.Get_rank() # Scatter matrix A to all other processes if rank == 0: scattered_A = np.array_split(A, num_processes) else: scattered_A = None # Receive the scattered portion of matrix A local_A = comm.scatter(scattered_A, root=0) # Print the received portion of matrix A on each process print("Rank", rank, "received portion of matrix A:") print(local_A) # Scatter matrix B to all processes scattered_B = comm.bcast(B, root=0) # Print the received portion of matrix B on each process print("Rank", rank, "received portion of matrix B:") print(scattered_B) # Perform local matrix multiplication local_C = matrix_multiplication(local_A, scattered_B) # Print the resulting local matrix on each process print("Rank", rank, "local matrix multiplication result:") print(local_C)# Reduce the local matrix portions using MPI_Reduce with the MPI_SUM operation reduced_C = comm.reduce(local_C, op=MPI.SUM, root=0) # Print the resulting matrix C on process rank 0 if rank == 0: print("Parallel matrix multiplication result:") print(reduced_C) import time # Measure the execution time of sequential matrix multiplication start_time = time.time() C_seq = matrix_multiplication(A, B) end_time = time.time() seq_execution_time = end_time - start_time # Measure the execution time of parallel matrix multiplication start_time = time.time() local_C = matrix_multiplication(local_A, scattered_B) reduced_C = comm.reduce(local_C, op=MPI.SUM, root=0) end_time = time.time() parallel_execution_time = end_time - start_time # Print the execution times if rank == 0: print("Sequential execution time:", seq_execution_time) print("Parallel execution time:", parallel_execution_time) comments powered by Disqus NEW ENTRIES S.No Name Entry Time/Date 5993 KIDs Videos 22-Jul-2024 07:26:57 AM 5992 S3XY GIRL 17-Jul-2024 09:48:56 AM 5991 bb 15-Jul-2024 11:05:23 AM 5990 main 15-Jul-2024 11:04:16 AM 5989 landscape 12-Jul-2024 04:02:16 PM 5988 aaa 12-Jul-2024 09:32:46 AM 5987 Emi Pet Mobi 11-Jul-2024 10:29:07 AM 5986 snake 11-Jul-2024 08:24:29 AM 5985 player 10-Jul-2024 02:00:49 PM 5984 movement 10-Jul-2024 08:52:29 AM 5983 snake 10-Jul-2024 08:50:12 AM 5982 af 09-Jul-2024 09:24:28 AM 5981 aa 08-Jul-2024 10:55:34 PM 5980 flu1 08-Jul-2024 04:02:35 PM 5979 flu 08-Jul-2024 03:58:49 PM 5978 Emi Pet | Po 08-Jul-2024 03:40:03 PM 5977 Empire Home 07-Jul-2024 08:31:42 AM 5976 Empire Meals 05-Jul-2024 11:37:32 AM 5975 prb 05-Jul-2024 09:07:27 AM 5974 Vital Eagles 03-Jul-2024 09:09:55 AM 5973 C34 02-Jul-2024 03:07:34 PM 5972 C33 02-Jul-2024 02:32:40 PM 5971 Vital Inc. 02-Jul-2024 07:55:25 AM 5970 container 01-Jul-2024 03:06:18 PM 5969 new 01-Jul-2024 12:48:17 PM 5968 360 Modular 29-Jun-2024 03:16:17 PM 5967 quiz 28-Jun-2024 08:10:48 PM 5966 gesture 28-Jun-2024 07:56:05 PM 5965 Garden Distr 28-Jun-2024 09:34:32 AM 5964 Child Sexy 27-Jun-2024 10:29:38 AM 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 [Next] [Last]
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