Intel® MPI Library

Developer Reference for Windows* OS

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ID 768734
Date 10/31/2024
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Document Table of Contents
Document Table of Contents x
Developer Reference for Windows* OS
Developer Reference for Windows* OS x
Introduction Command Reference Environment Variable Reference Notices and Disclaimers
Introduction x
Introducing Intel® MPI Library Notational Conventions Related Information User Authorization I_MPI_AUTH_METHOD
Command Reference x
Compiler Commands mpiexec.hydra cpuinfo impi_info
Compiler Commands x
Compilation Command Options
mpiexec.hydra x
Global Hydra Options Local Hydra Options
Environment Variable Reference x
Compilation Environment Variables Hydra Environment Variables I_MPI_ADJUST Family Environment Variables Tuning Environment Variables Main Thread Pinning Environment Variables for Fabrics Control Environment Variables for Memory Policy Control Other Environment Variables
Tuning Environment Variables x
Autotuning
Autotuning x
I_MPI_TUNING_AUTO Family Environment Variables
Main Thread Pinning x
Environment Variables for Main Thread Pinning Interoperability with OpenMP* API
Environment Variables for Fabrics Control x
Communication Fabrics Control Shared Memory Control OFI*-capable Network Fabrics Control
Developer Reference for Windows* OS

User Authorization

The Intel® MPI Library supports several authentication methods under Windows* OS:

I_MPI_AUTH_METHOD

Select a user authorization method.

Syntax

I_MPI_AUTH_METHOD=<method>

Arguments

<method> Define the authorization method.
<not set> Use the default bootstrap mechanism, not relies on hydra_service. This is the default value.
delegate Use the domain-based authorization with delegation ability.
impersonate Use the limited domain-based authorization. You will not be able to open files on remote machines or access mapped network drives.

Description

Set this environment variable to select a desired authorization method. If this environment variable is not defined, mpiexec uses the password-based authorization method by default. The setting of I_MPI_AUTH_METHOD to any value above leads to the usage of service-based bootstrap. Alternatively, you can change the default behavior by using the -delegate or -impersonate options.

See the User Authorization section of the Intel® MPI Library Developer Guide for more information.

Parent topic: Introduction
Level Two Title