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Introduction

NOL uses remote procedure calls (RPCs) for numerically intensive tasks such as neural network training, fit testing, sensitivity testing, and running autoassociative networks. The remote procedures run as a concurrent process separate from G2. G2 talks to the remote process using a communication bridge based on TCP/IP or DECnet. It also uses text files for data exchange. This diagram illustrates the structure:


For NOL to operate correctly you must:

NOL usually handles these steps transparently during installation. However, because hardware and software configurations differ from computer to computer, the default procedure for configuring the remote process might not always be appropriate. NeurOn-Line generates error messages if any of the steps involved with operating the remote process fails, such as launching, establishing the connection, or communicating with external files.

If NOL has trouble starting the remote process, you can handle the startup manually, either using the Remote Procedure menu, as described in "Starting the RPC Running from within NOL", or externally, as described in "Starting the Remote Process in an External Window".

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