| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the use amount of external memory while suppressing the reduction in data processing performance without increasing hardware resources, in a data processor having an accelerator system configuration. Ž<P>SOLUTION: A stream to be compressed is specified for each reconfigured stage so that local memory does not become over-capacity based on a non-accumulation type stream, an accumulation type stream, and an available capacity of the local memory, and the existence of application of compression processing or extension processing is controlled in relation to the stream to be compressed. For example, a compression threshold TH is calculated for each stage (S1010), and a compressor and an extending apparatus are inserted into the stage if possible (S1022). When over-capacity occurs during image processing applied with the compression processing, primary fall back processing is applied (S1042). When over-capacity occurs even by application of the primary fall back processing, a secondary fall back processing is applied (S1046). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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