Instead of providing an abstraction of logical SPUs, this interface is thread-oriented and behaves in a similar way to the pthread library.
这个接口并不是提供一个逻辑spu的抽象，而是面向线程的，它的工作方式与pthread库类似。
By mapping multiple SPUs into a single process, it becomes possible to use DMA to transfer data between the local store of two SPUs directly.
通过将多个SPU映射到一个进程中，就可以使用DMA来在两个SPU的本地存储之间直接传输数据。
Some kernel code is needed to use the SPUs from a Linux application, since the controlling registers are only accessible from the PPE in privileged mode.
在Linux程序中使用SPU需要使用一部分内核代码，因为控制寄存器只能从PPE中使用特权模式进行访问。
On the SPUs, most instructions can operate on registers as if they contained multiple, independent values (thus the single instruction acting on multiple data items).
在SPU上，大部分指令都可以在寄存器上进行操作，就仿佛它们分别包含多个无关的值一样(因此可以对多个数据项执行一条指令)。
On the SPUs, most instructions can operate on registers as if they contained multiple, independent values (thus the single instruction acting on multiple data items).
在SPU上，大部分指令都可以在寄存器上进行操作，就仿佛它们分别包含多个无关的值一样(因此可以对多个数据项执行一条指令)。
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