Parallel vo
Parallel I/O
) Objectives The material covered to this point discussed how multiple processes can share data stored in separate memory spaces (See Section 1.1-Parallel Architectures ). This is achieved by sending messages between processes Parallel w o covers the issue of how data are distributed among l/ 0 devices. While the memory subsystem can be different from machine to machine the logical methods of accessing memory are generally common, i.e., the same model should apply from machine to machine Parallel w/O is complicated in that both the physical and logical configurations often differ from machine to machine
Objectives • The material covered to this point discussed how multiple processes can share data stored in separate memory spaces (See Section 1.1 - Parallel Architectures). This is achieved by sending messages between processes. • Parallel I/O covers the issue of how data are distributed among I/O devices. While the memory subsystem can be different from machine to machine, the logical methods of accessing memory are generally common, i.e., the same model should apply from machine to machine. • Parallel I/O is complicated in that both the physical and logical configurations often differ from machine to machine
) Objectives MP-2 is the first version of mpi to include routines for handling parallel / O. As such, much of the material in this chapter is applicable only if the system you are working on has an implementation of MPi that includes parallel I/O This section proposes to introduce you to the general concepts of parallel l /o, with a focus on MPl-2 file w /o The material is organized to meet the following three goals 1. Learn fundamental concepts that define parallel I/o 2. Understand how parallel I/0 is different from traditional, serial 1O 3. Gain experience with the basic MP[-2 /0 function calls
Objectives • MPI-2 is the first version of MPI to include routines for handling parallel I/O. As such, much of the material in this chapter is applicable only if the system you are working on has an implementation of MPI that includes parallel I/O. • This section proposes to introduce you to the general concepts of parallel I/O, with a focus on MPI-2 file I/O. • The material is organized to meet the following three goals: 1. Learn fundamental concepts that define parallel I/O 2. Understand how parallel I/O is different from traditional, serial I/O 3. Gain experience with the basic MPI-2 I/O function calls
) Objectives The topics to be covered are 1. Introduction 2. Applications 3. Characteristics of serial 1/o 4 Characteristics of parallel l/o 5. Introduction to mp -2 Parallel vo 6. MP-2 File structure 7. Initializing mpi-2 File 1/0 8. Defining a view 9. Data Access-Reading data 10.Data Access -Writing Data 11.Closing MP1-2 File 1/0
Objectives • The topics to be covered are 1. Introduction 2. Applications 3. Characteristics of Serial I/O 4. Characteristics of Parallel I/O 5. Introduction to MPI-2 Parallel I/O 6. MPI-2 File Structure 7. Initializing MPI-2 File I/O 8. Defining A View 9. Data Access - Reading Data 10.Data Access - Writing Data 11.Closing MPI-2 File I/O
Introduction
Introduction