HP-MPI 1.1 for Windows Release Note

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"HP-MPI for Windows 1.1 版本发布说明" 本文档是HP-MPI（Hewlett-Packard Message Passing Interface）版本1.1针对Windows操作系统的发布说明，该版本主要用于支持LS-DYNA等高性能计算应用。HP-MPI是HP公司开发的一种并行计算通信库，用于在分布式内存系统上实现进程间通信，它允许在多处理器环境中运行应用程序，特别适合于科学计算和工程模拟。 HP-MPI 1.1 for Windows的关键特性可能包括对Windows平台的优化，以确保在Windows环境下也能实现高效、稳定的并行计算。尽管文档未提供详细的功能列表，但通常HP-MPI会提供以下功能： 1. **并行编程模型**：HP-MPI遵循MPI（Message Passing Interface）标准，提供了一组函数接口，允许程序员在并行程序中进行进程间通信，如发送和接收消息、集合操作、同步机制等。 2. **性能优化**：由于HP是一家知名硬件制造商，其开发的MPI库通常会与HP硬件紧密集成，以提供最佳性能。HP-MPI可能包含针对特定硬件平台的优化，例如利用高速网络适配器加速通信。 3. **兼容性**：与LS-DYNA等科学计算软件的兼容性意味着HP-MPI可能支持常见的科学计算接口和工作流程，使得用户能在Windows系统下无缝运行大规模仿真任务。 4. **错误处理和调试工具**：HP-MPI可能提供丰富的错误处理机制，帮助开发者识别和修复并行程序中的问题。此外，可能还包括一些调试工具，以帮助优化代码性能和定位问题。 5. **安全性与稳定性**：作为商业产品，HP-MPI会提供一定的安全性和稳定性保障，确保在复杂的并行计算环境中数据的完整性和系统的可靠性。 6. **法律条款与保修**：文档中提到了法律注意事项，表明HP不对本手册中的错误或遗漏承担责任，并强调具体的产品保修条款应从当地的销售和服务办公室获取。对于美国政府用户，HP-MPI的使用、复制和披露受到特定法规限制。虽然文档没有详细列出HP-MPI 1.1的具体技术细节，但可以推断，这个版本可能包含了性能提升、新的功能特性和对现有问题的修复。对于使用LS-DYNA或其他依赖MPI的软件的Windows用户来说，HP-MPI 1.1是一个重要的更新，能够帮助他们更有效地利用多核或多处理器系统进行计算密集型任务。

HP-MPI V1.1 for Windows Release Note

What’s in This Version

-ccpblock Uses block scheduling to place ranks on allocated nodes. Nodes will be

processed in the order they were allocated by the scheduler, with each node

being fully populated up to the total number of CPUs before moving on to

the next node. Only valid when the -ccp option is used. May not be used

with the -f, -hostfile, or -hostlist options.

-ccpcluster <headnode>

Specifies the headnode of the CCP cluster that should be used to run the job.

Assumed to be the local host if omitted.

-ccpcyclic Uses cyclic scheduling to place ranks on allocated nodes. Nodes will be

processed in the order they were allocated by the scheduler, with one rank

allocated per node on each cycle through the node list. The node list will be

traversed as many times as is necessary to reach the total rank count

requested. Only valid when the -ccp option is used. May not be used with

the -f, -hostfile, or -hostlist options.

-f <appfile> Specifies the appfile that mpirun parses to get program and process count

information for the run.

-hostfile <filename>

Launches the same executable across multiple hosts. Filename is a text file

with hostnames separated by spaces or new lines.

-hostlist <quoted-host-list>

Indicates what nodes to use for the job. This hostlist may be delimited with

spaces or commas. If spaces are used as delimiters anywhere in the hostlist,

it may be necessary to place the entire hostlist inside quotes to prevent the

command shell from interpreting it as multiple options.

-jobid <job-id>

Schedules an HP-MPI job as a task to an existing job. It will submit the

command as a single CPU mpirun task to the existing job indicated by the

parameter job-id. This option is only valid when using the mpirun automatic

submittal functionality.

-package <package-name>

-pk <package-name>

When HP-MPI authenticates with the HP-MPI Remote Launch service, it

will authenticate using an installed Windows security package (e.g.

Kerberos, NTLM, Negotiate, etc.). By default, HP-MPI will negotiate the

package to use with the service, and no interaction or package specification

is required by the user. If a specific installed Windows security package is

preferred, use this flag to indicate that security package on the client. This

HP-MPI V1.1 for Windows Release Note

What’s in This Version

flag is rarely necessary as the client (mpirun) and the server (HP-MPI

Remote Launch service) will negotiate the security package to be used for

authentication.

-token <token-name>

-tg <token-name>

Authenticates to this token with the HP-MPI Remote Launch service. Some

authentication packages require a token name. The default is no token.

-pass Prompts the user for his domain account password. Used to authenticate

and create remote processes. A password is required to allow the remote

process to access network resources (such as file shares). The password

provided is encrypted using SSPI for authentication. The password is not

cached when using this option.

-cache Prompts the user for his domain account password. Used to authenticate

and create remote processes. A password is required to allow the remote

process to access network resources (such as file shares). The password

provided is encrypted using SSPI for authentication. The password will be

cached so that future mpirun commands will use the cached password.

Passwords are cached in encrypted form, using Windows Encryption APIs.

-nopass Executes the mpirun command with no password. If a password is cached, it

is not accessed and no password is used to create the remote processes.

Using no password will result in the remote processes not having access to

network resources. This option will also suppress the 'no password cached'

warning. This is useful when no password is desired for SMP jobs.

-iscached Indicates if a password is stored in the user password cache and stops

execution. The MPI application will not launch if this option is included on

the command line.

-clearcache Clears the password cache and stops. The MPI application will not launch if

this option is included on the command line.

Appfile, hostlist, and hostfile support for Windows 2003/XP and Windows CCS

This release contains a variety of new launch options for the mpirun.exe command. The

-hostfile and -hostlist options allow the user to launch the same executable across a

collection of hosts. The use of the -f option and an appfile allow applications to launch that

consist of multiple programs or that run on multiple hosts. Detailed examples of these options

are given in the “Building and running applications” section on page 34 of this release note.

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