Let us assume that there are only two processes and all data are set up for the communication and that the initialize() function is well defined to initialize the content of array a and b. Read the following communication part of a MPI program : int a[10], b[5], my_rank; MPI_Status status; initialize(a, b, 10); // initialize the array a and b MPI Comm_rank(MPI_COMM_WORLD, &my_rank); if (my rank == 0) MPI Send(a, 10, MPI INT, 1, 1, MPI_COMM WORLD): MPI_Send(b, 5, MPI_INT, 1, 2, MPI_COMM WORLD); else if (my rank 1)[ MPI Recv(b, 5, MPI_INT, 0, 1, MPI COMM_WORLD, MPI STATUS IGNORE); MPI Recv(a, 10, MPI_INT, 0, 2, MPI_COMM_WORLD, MPI_STATUS IGNORE): Which statement is correct? O The code can't be executed correctly since the specified number of elements to receive in the process of rank 1 is smaller than the number of sending items by the process of rank 0. O The code can't be executed correctly since the sending or receiving buffers are not set correctly. O The code can't be executed correctly since the message tags are not correct. O The code is correct.
Let us assume that there are only two processes and all data are set up for the communication and that the initialize() function is well defined to initialize the content of array a and b. Read the following communication part of a MPI program : int a[10], b[5], my_rank; MPI_Status status; initialize(a, b, 10); // initialize the array a and b MPI Comm_rank(MPI_COMM_WORLD, &my_rank); if (my rank == 0) MPI Send(a, 10, MPI INT, 1, 1, MPI_COMM WORLD): MPI_Send(b, 5, MPI_INT, 1, 2, MPI_COMM WORLD); else if (my rank 1)[ MPI Recv(b, 5, MPI_INT, 0, 1, MPI COMM_WORLD, MPI STATUS IGNORE); MPI Recv(a, 10, MPI_INT, 0, 2, MPI_COMM_WORLD, MPI_STATUS IGNORE): Which statement is correct? O The code can't be executed correctly since the specified number of elements to receive in the process of rank 1 is smaller than the number of sending items by the process of rank 0. O The code can't be executed correctly since the sending or receiving buffers are not set correctly. O The code can't be executed correctly since the message tags are not correct. O The code is correct.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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