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71. 发明申请

US20110078406A1 Unified Addressing and Instructions for Accessing Parallel Memory Spaces 有权
标题翻译：统一寻址和访问并行内存空间的说明
公开(公告)号：US20110078406A1
公开(公告)日：2011-03-31
申请号：US12567637
申请日：2009-09-25
申请人： John R. Nickolls , Brett W. Coon , Ian A. Buck , Robert Steven Glanville
发明人： John R. Nickolls , Brett W. Coon , Ian A. Buck , Robert Steven Glanville
IPC分类号： G06F12/10
CPC分类号： G06F12/1054 , G06F12/0284 , G06F12/109 , G06F13/404 , G06F2212/302 , G06F2212/656
摘要： One embodiment of the present invention sets forth a technique for unifying the addressing of multiple distinct parallel memory spaces into a single address space for a thread. A unified memory space address is converted into an address that accesses one of the parallel memory spaces for that thread. A single type of load or store instruction may be used that specifies the unified memory space address for a thread instead of using a different type of load or store instruction to access each of the distinct parallel memory spaces.
摘要翻译：本发明的一个实施例提出了一种用于将多个不同的并行存储器空间的寻址统一为用于线程的单个地址空间的技术。统一的存储空间地址被转换为访问该线程的并行存储器空间之一的地址。可以使用单一类型的加载或存储指令，其指定线程的统一存储器空间地址，而不是使用不同类型的加载或存储指令来访问每个不同的并行存储器空间。

72. 发明授权

US07805573B1 Multi-threaded stack cache 有权
标题翻译：多线程堆栈缓存
公开(公告)号：US07805573B1
公开(公告)日：2010-09-28
申请号：US11313448
申请日：2005-12-20
申请人： Brett W. Coon
发明人： Brett W. Coon
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F12/0875 , G06F12/0842
摘要： Systems and methods for storing stack data for multi-threaded processing in a specialized cache reduce on-chip memory requirements while maintaining low access latency. An on-chip stack cache is used store a predetermined number of stack entries for a thread. When additional entries are needed for the thread, entries stored in the stack cache are spilled, i.e., moved, to remote memory. As entries are popped off the on-chip stack cache, spilled entries are restored from the remote memory. The spilling and restoring processes may be performed while the on-chip stack cache is accessed. Therefore, a large stack size is supported using a smaller amount of die area than that needed to store the entire large stack on-chip. The large stack may be accessed without incurring the latency of reading and writing to remote memory since the stack cache is preemptively spilled and restored.
摘要翻译：用于在专用高速缓存中存储用于多线程处理的堆栈数据的系统和方法降低了片上存储器需求，同时保持低访问延迟。使用片上堆栈高速缓存来存储线程的预定数量的堆栈条目。当线程需要额外的条目时，存储在堆栈高速缓存中的条目将被溢出，即移动到远程存储器。当条目从片上堆栈高速缓存中弹出时，从远程存储器恢复溢出的条目。可以在访问片上堆栈高速缓存时执行溢出和恢复过程。因此，使用比存储芯片上整个大堆栈所需的更小的管芯面积来支持大的堆叠尺寸。可以访问大堆栈，而不会导致读取和写入远程内存的延迟，因为堆栈高速缓存被抢先溢出并恢复。

73. 发明授权

US07711990B1 Apparatus and method for debugging a graphics processing unit in response to a debug instruction 有权
标题翻译：响应于调试指令调试图形处理单元的装置和方法
公开(公告)号：US07711990B1
公开(公告)日：2010-05-04
申请号：US11302952
申请日：2005-12-13
申请人： John R. Nickolls , Roger L. Allen , Brian K. Cabral , Brett W. Coon , Robert C. Keller
发明人： John R. Nickolls , Roger L. Allen , Brian K. Cabral , Brett W. Coon , Robert C. Keller
IPC分类号： G06F11/00
CPC分类号： G06F11/3648
摘要： A system includes a graphics processing unit with a processor responsive to a debug instruction that initiates the storage of execution state information. A memory stores the execution state information. A central processing unit executes a debugging program to analyze the execution state information.
摘要翻译：系统包括具有处理器的图形处理单元，该处理器响应于启动执行状态信息的存储的调试指令。存储器存储执行状态信息。中央处理单元执行调试程序以分析执行状态信息。

74. 发明申请

US20090240860A1 Lock Mechanism to Enable Atomic Updates to Shared Memory 有权
标题翻译：锁定机制来启用共享内存的原子更新
公开(公告)号：US20090240860A1
公开(公告)日：2009-09-24
申请号：US12054267
申请日：2008-03-24
申请人： Brett W. Coon , John R. Nickolls , Lars Nyland , Peter C. Mills
发明人： Brett W. Coon , John R. Nickolls , Lars Nyland , Peter C. Mills
IPC分类号： G06F12/14
CPC分类号： G06F12/084 , G06F9/3004 , G06F9/30087 , G06F9/30185 , G06F9/526 , G06F2209/521
摘要： A system and method for locking and unlocking access to a shared memory for atomic operations provides immediate feedback indicating whether or not the lock was successful. Read data is returned to the requestor with the lock status. The lock status may be changed concurrently when locking during a read or unlocking during a write. Therefore, it is not necessary to check the lock status as a separate transaction prior to or during a read-modify-write operation. Additionally, a lock or unlock may be explicitly specified for each atomic memory operation. Therefore, lock operations are not performed for operations that do not modify the contents of a memory location.
摘要翻译：用于锁定和解锁对原子操作的共享存储器的访问的系统和方法提供指示锁是否成功的即时反馈。读取数据将返回给具有锁定状态的请求者。在写入期间在读取或解锁期间锁定时，锁定状态可能会同时更改。因此，在读取 - 修改 - 写入操作之前或期间，不必将锁定状态检查为单独的事务。另外，可以为每个原子存储器操作明确地指定锁定或解锁。因此，对于不修改内存位置的内容的操作，不执行锁定操作。

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