P
parallel applicationAn application that uses a distributed programming model and can run on multiple processors. An HP XC MPI application is a parallel application. That is, all interprocessor communication within an HP XC parallel application is performed through calls to the MPI message passing library.
PXEPreboot Execution Environment. A standard client/server interface that allows networked computers that are not yet installed with an operating system to be configured and booted remotely. PXE booting is configured at the BIOS level.
R
resource manager roleNodes with this role manage the allocation of resources to user applications.
roleA set of services that are assigned to a node.
Root Administration SwitchA component of the administrative network. The top switch in the Administrative Network; it may be a logical network switch comprised of multiple hardware switches. The Root Console Switch is connected to the Root Administration Switch.
root nodeA server within the XC system that is connected directly to the Root Administration Switch.
RPMRed Hat Package Manager.
1.A utility that is used for software package management on a Linux operating system, most notably to install and remove software packages.
2.A software package that is capable of being installed or removed with the RPM software package management utility.
S
serial applicationA command or user program that does not use any distributed
An example of a serial application is a standard Linux command, such as the ls command. Another example of a serial application is a program that has been built on a Linux system that is binary compatible with the HP XC environment, but does not contain any of the HP XC infrastructure libraries.
SMPSymmetric multiprocessing. A system with two or more CPUs that share equal (symmetric) access to all of the facilities of a computer system, such as the memory and I/O subsystems. In an HP XC system, the use of SMP technology increases the number of CPUs (amount of computational power) available per unit of space.
sshSecure Shell. A shell program for logging in to and executing commands on a remote computer. It can provide secure encrypted communications between two untrusted hosts over an insecure network.