| 摘要 |
An asymmetric multiprocessor apparatus (2) is provided in which respective slave diagnostic units (20, 22, 24) are associated with corresponding execution mechanisms (6, 8, 10). A master, diagnostic unit (26) tracks the migration of thread execution between the different execution mechanisms (6, 8, 10) so that the execution of a given thread can be followed by the diagnostic mechanisms (20, 22, 24, 26) and this information provided to the programmer. The execution mechanisms (6, 8, 10) can be diverse such as a general purpose processor (6), a DMA unit (12), a coprocessor, an VLIW processor, a digital signal processor (8) and a hardware accelerator (10). The asymmetric multiprocessor apparatus (2) will also typically include an asymmetric memory hierarchy such as including two or more of a global memory, a shared memory (16), a private memory (18) and a cache memory (14).
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