3 – Using InfiniPath MPI InfiniPath MPI Details

Q

The current workaround for this is to compile on a supported and compatible distribution, then run the executable on one of the systems that uses the GNU 4.x compilers and environment.

■To run on FC4 or FC5, install FC3 or RHEL4/CentOS on your build machine. Compile your application on this machine.

■To run on SLES 10, install SUSE 9.3 on your build machine. Compile your application on this machine.

■Alternatively, gcc can be used as the default compiler. Set mpicc -cc=gccas described in section 3.5.3 "To Use Another Compiler".

Next, on the machines in your cluster on which the job will run, install compatibility libraries. These libraries include C++ and Fortran compatibility shared libraries and libgcc.

For an FC4 or FC5 system, you would need:

■pathscale-compilers-libs (for FC3)

■compat-gcc-32

■compat-gcc-32-g77

■compat-libstdc++-33

On a SLES 10 system, you would need:

■compat-libstdc++ (for FC3)

■compat-libstdc++5 (for SLES 10)

Depending upon the application, you may need to use the -W1,-Bstaticoption to use the static versions of some libraries.

3.5.5

Running MPI Programs

The script mpirun lets you start your parallel MPI program on a set of nodes in a cluster. It starts, monitors, and terminates the node programs. mpirun uses ssh (secure shell) to log in to individual cluster machines and prints any messages that the node program prints on stdout or stderr on the terminal from which mpirun is invoked. It is therefore usually desirable to either configure all cluster nodes to use shosts.equiv (see section 2.9), or for users to use ssh-agent(see section 3.5.1) in order to allow MPI programs to be run without requiring that a password be entered for each node in the job.

The general syntax is:

$ mpirun [mpirun_options...] program-name [program options]

3-10

IB6054601-00 D

Page 51 Page 53
Page 52
Image 52
Q-Logic IB6054601-00 D manual Running MPI Programs
Page 51 Page 53

IB6054601-00 D specifications

The Q-Logic IB6054601-00 D is a high-performance InfiniBand adapter card designed for data centers and enterprise applications requiring robust connectivity and low-latency communication. This adapter is part of QLogic's extensive portfolio of networking solutions, catering to the needs of high-performance computing (HPC), cloud computing, and virtualization environments.

One of the standout features of the IB6054601-00 D is its capability to support data transfer rates of up to 56 Gbps. This makes it ideal for applications demanding large bandwidth and quick data processing. The adapter is optimized for RDMA (Remote Direct Memory Access) technology, which allows data to be transferred directly between the memory of different computers without involving the CPU. This reduces latency and CPU overhead, leading to enhanced overall system performance.

The architecture of the IB6054601-00 D includes support for a dual-port design, which offers increased bandwidth, redundancy, and fault tolerance. This dual-port configuration is especially advantageous for environments that require high availability and reliability, such as financial services and mission-critical applications.

The adapter utilizes advanced error detection and correction mechanisms, ensuring that data integrity is maintained during transmission. With features like adaptive routing and congestion management, the IB6054601-00 D is capable of optimizing the handling of data flows, thereby enhancing performance even under heavy loads.

In terms of compatibility, the Q-Logic IB6054601-00 D supports a wide range of operating systems and virtualization technologies, making it easy to integrate into diverse IT environments. It also includes drivers and software packages that facilitate seamless deployment and management.

In addition to high-speed connectivity, the adapter is designed with power efficiency in mind. It adheres to Energy Star regulations, helping organizations lower their operational costs while minimizing their environmental footprint.

Overall, the Q-Logic IB6054601-00 D stands out for its high throughput, low latency, and reliability. Its combination of advanced features and technologies positions it as an excellent choice for organizations looking to enhance their data center performance and maximize the efficiency of their network infrastructure. With the growing demands for faster and more efficient data transfer, solutions like the IB6054601-00 D are essential in meeting the evolving needs of modern enterprises.
Top Page Image Contents