Thread View: mod.computers.masscomp
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Started by masscomp
Tue, 17 Jun 1986 04:29
Shared memory examples sought
Author: masscomp
Date: Tue, 17 Jun 1986 04:29
Date: Tue, 17 Jun 1986 04:29
19 lines
1638 bytes
1638 bytes
We would like to link two concurrent processes in a real-time application using shared memory. One process simultaneously sends data to and receives data from the data acquisition and control processor in short bursts (1 to 2 s) separated by pseudo-random intervals (3 s avg.). The other process runs an interactive graphical simulation on an independent graphics processor (IGP). This simulation runs as a large display list in IGP memory that updates itself on the fly by reading display information from registers in the host memory. The host updates these registers once every second. We want the data-acquisition process to change two of the registers in host memory that the simulation process uses. To us, shared memory seems to be the fastest and surest way of doing this. None of us has experience with shared memory programming. So we seek information and examples that would be helpful to us in linking these processes together. Len Trejo (for Neuroscience Group). NPRDC arpa: trejo@nprdc Phone: (619) 225-7424/7627
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