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1. 发明申请

US20140040565A1 Shared Memory Space in a Unified Memory Model 有权
标题翻译：统一内存模型中的共享内存空间
公开(公告)号：US20140040565A1
公开(公告)日：2014-02-06
申请号：US13562985
申请日：2012-07-31
申请人： Anthony ASARO , Kevin NORMOYLE , Mark D. HUMMEL , Mark FOWLER
发明人： Anthony ASARO , Kevin NORMOYLE , Mark D. HUMMEL , Mark FOWLER
IPC分类号： G06F12/06
CPC分类号： G06F12/063 , G06F12/0292 , G06F12/06
摘要： Methods and systems are provided for mapping a memory instruction to a shared memory address space in a computer arrangement having a CPU and an APD. A method includes receiving a memory instruction that refers to an address in the shared memory address space, mapping the memory instruction based on the address to a memory resource associated with either the CPU or the APD, and performing the memory instruction based on the mapping.
摘要翻译：提供了用于将存储器指令映射到具有CPU和APD的计算机装置中的共享存储器地址空间的方法和系统。一种方法包括接收参考共享存储器地址空间中的地址的存储器指令，将基于地址的存储器指令映射到与CPU或APD相关联的存储器资源，以及基于映射执行存储器指令。

2. 发明申请

US20130262775A1 Cache Management for Memory Operations 有权
标题翻译：内存操作缓存管理
公开(公告)号：US20130262775A1
公开(公告)日：2013-10-03
申请号：US13436767
申请日：2012-03-30
申请人： Anthony ASARO , Kevin Normoyle , Mark Hummel , Norman Rubin , Mark Fowler
发明人： Anthony ASARO , Kevin Normoyle , Mark Hummel , Norman Rubin , Mark Fowler
IPC分类号： G06F12/08
CPC分类号： G06F12/0891 , G06F12/0815 , G06F12/0837 , G06F12/0877 , G06F12/123 , G06F12/126 , G06F12/128
摘要： Embodiments of the present invention provides for the execution of threads and/or workitems on multiple processors of a heterogeneous computing system in a manner that they can share data correctly and efficiently. Disclosed method, system, and article of manufacture embodiments include, responsive to an instruction from a sequence of instructions of a work-item, determining an ordering of visibility to other work-items of one or more other data items in relation to a particular data item, and performing at least one cache operation upon at least one of the particular data item or the other data items present in any one or more cache memories in accordance with the determined ordering. The semantics of the instruction includes a memory operation upon the particular data item.
摘要翻译：本发明的实施例提供在异构计算系统的多个处理器上执行线程和/或工作项，以使得它们可以正确且有效地共享数据。公开的方法，系统和制品实施例包括响应于来自工作项目的指令序列的指令，确定与特定数据相关的一个或多个其他数据项的其他工作项的可见性的排序并且根据所确定的顺序对存在于任何一个或多个高速缓存存储器中的特定数据项或其他数据项中的至少一个执行至少一个高速缓存操作。指令的语义包括对特定数据项的存储器操作。

3. 发明申请

US20130262776A1 Managing Coherent Memory Between an Accelerated Processing Device and a Central Processing Unit 有权
标题翻译：管理加速处理设备和中央处理单元之间的相干内存
公开(公告)号：US20130262776A1
公开(公告)日：2013-10-03
申请号：US13601126
申请日：2012-08-31
申请人： Anthony ASARO , Kevin NORMOYLE , Mark HUMMEL
发明人： Anthony ASARO , Kevin NORMOYLE , Mark HUMMEL
IPC分类号： G06F12/08
CPC分类号： G06F12/0815 , G06F12/0804 , G06F12/0806 , G06F12/0835 , G06F12/0837 , G06F12/0848 , G06F2212/1021 , G06F2212/1024 , G06F2212/283 , G06F2212/608 , Y02D10/13
摘要： Existing multiprocessor computing systems often have insufficient memory coherency and, consequently, are unable to efficiently utilize separate memory systems. Specifically, a CPU cannot effectively write to a block of memory and then have a GPU access that memory unless there is explicit synchronization. In addition, because the GPU is forced to statically split memory locations between itself and the CPU, existing multiprocessor computing systems are unable to efficiently utilize the separate memory systems. Embodiments described herein overcome these deficiencies by receiving a notification within the GPU that the CPU has finished processing data that is stored in coherent memory, and invalidating data in the CPU caches that the GPU has finished processing from the coherent memory. Embodiments described herein also include dynamically partitioning a GPU memory into coherent memory and local memory through use of a probe filter.
摘要翻译：现有的多处理器计算系统通常具有不足的存储器一致性，因此不能有效地利用单独的存储器系统。具体来说，CPU无法有效地写入内存块，然后除了有明确的同步之外，还可以对存储器进行GPU访问。另外，由于GPU被迫静态分割其本身与CPU之间的存储器位置，所以现有的多处理器计算系统不能有效地利用单独的存储器系统。本文所描述的实施例通过在GPU内接收到通知，CPU已经完成处理存储在相干存储器中的数据，并使CPU缓冲器中的数据无效，GPU已经从相干存储器完成处理来克服这些缺陷。本文描述的实施例还包括通过使用探针滤波器来将GPU存储器动态地划分为相干存储器和本地存储器。

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