-
公开(公告)号:US20240202124A1
公开(公告)日:2024-06-20
申请号:US18067779
申请日:2022-12-19
Applicant: Intel Corporation
Inventor: Israel Diamand , Randy Osborne , Nadav Bonen
IPC: G06F12/0831 , G06F12/0864
CPC classification number: G06F12/0831 , G06F12/0864
Abstract: Embodiments described herein may include apparatus, systems, techniques, and/or processes that are directed to computing systems implementing a very large cache for one or more processing engines in a shared memory system. According to various embodiments, a snoop filter tracks a hash value of the cached addresses instead of tracking the addresses themselves. Tracking hash values introduces inaccuracy and an inability to easily clean or refresh the snoop filter. A refresh algorithm maintains cache coherency without significant performance degradation. The cache refresh algorithm keeps the accuracy of the snoop filter, hence reducing the latency and power effects of false snoops. Further, the use of hash values reduces the hardware cost over traditional snoop filters.
-
12.
公开(公告)号:US20240202120A1
公开(公告)日:2024-06-20
申请号:US18083389
申请日:2022-12-16
Applicant: Intel Corporation
Inventor: Israel Diamand , Julius Mandelblat
IPC: G06F12/0806
CPC classification number: G06F12/0806 , G06F2212/1016
Abstract: Techniques and mechanisms for selectively configuring an integrated circuit (IC) chip to provide tag array functionality and/or cache array functionality. In an embodiment, an IC chip comprises a first array of memory cells, a second array of memory cells, and a cache controller. Based on whether the IC chip is coupled to another IC chip, selector circuitry of the IC chip configures one of multiple possible modes of the cache controller. A first mode of the multiple modes is to provide tag array functionality with the first array, and cache array functionality with the second memory cell array. A second mode of the multiple modes is to provide tag array functionality with the second memory cell array, and cache array functionality with a remote array of memory cells. In another embodiment, the cache controller is reconfigured to another mode based on a change to a power consumption characteristic.
-
公开(公告)号:US10558602B1
公开(公告)日:2020-02-11
申请号:US16130748
申请日:2018-09-13
Applicant: Intel Corporation
Inventor: Israel Diamand
Abstract: A transmitter comprising an input data buffer to store a plurality of bytes received on a first interconnect; multiplexer circuitry coupled to the input data buffer; and an output buffer coupled to the multiplexer circuitry, a second interconnect, and a third interconnect. The multiplexer circuitry is to: receive byte enable information in the input data buffer; determine that one or more of the plurality of bytes stored in the input data buffer are invalid; store an indicator in the output buffer; store valid bytes of the plurality of bytes in the output buffer to transmit on the third interconnect; and store the byte enable information in the output buffer to transmit on the third interconnect.
-
公开(公告)号:US20180011790A1
公开(公告)日:2018-01-11
申请号:US15206589
申请日:2016-07-11
Applicant: Intel Corporation
Inventor: Jayesh Gaur , Supratik Majumder , Zvika Greenfield , Israel Diamand
IPC: G11C11/406 , G06F15/78
CPC classification number: G06F12/0808 , G06F12/0811 , G06F12/0831 , G06F12/0864 , G06F12/0897 , G06F15/781 , G06F2212/283 , G06F2212/621 , G11C11/40615
Abstract: An apparatus includes a cache controller, the cache controller to receive, from a requestor, a memory access request referencing a memory address of a memory. The cache controller may identify a cache entry associated with the memory address, and responsive to determining that a first data item stored in the cache entry matches a data pattern indicating cache entry invalidity, read a second data item from a memory location identified by the memory address. The cache controller may then return, to the requestor, a response comprising the second data item.
-
公开(公告)号:US20170285703A1
公开(公告)日:2017-10-05
申请号:US15623536
申请日:2017-06-15
Applicant: Intel Corporation
Inventor: Israel Diamand , Asaf Rubinstein , Arik Gihon , Tal Kuzi , Tomer Ziv , Nadav Shulman
CPC classification number: G06F1/3296 , G06F1/26 , G06F1/3228 , G06F1/324 , Y02D10/126 , Y02D10/172 , Y02D50/20
Abstract: In an embodiment, a processor includes a first core and a power management agent (PMA), coupled to the first core, to include a static table that stores a list of operations, and a plurality of columns each to specify a corresponding flow that includes a corresponding subset of the operations. Execution of each flow is associated with a corresponding state of the first core. The PMA includes a control register (CR) that includes a plurality of storage elements to receive one of a first value and a second value. The processor includes execution logic, responsive to a command to place the first core into a first state, to execute an operation of a first flow when a corresponding storage element stores the first value and to refrain from execution of an operation of the first flow when the corresponding element stores the second value. Other embodiments are described and claimed.
-
公开(公告)号:US09582430B2
公开(公告)日:2017-02-28
申请号:US14671927
申请日:2015-03-27
Applicant: Intel Corporation
Inventor: Zvika Greenfield , Nadav Bonen , Israel Diamand
CPC classification number: G06F12/0895 , G06F12/0808 , G06F12/0842 , G06F12/0864 , G06F2212/1016 , G06F2212/62
Abstract: Embodiments are generally directed to an asymmetric set combined cache including a direct-mapped cache portion and a multi-way cache portion. A processor may include one or more processing cores for processing of data, and a cache memory to cache data from a main memory for the one or more processing cores, the cache memory including a first cache portion, the first cache portion including a direct-mapped cache, and a second cache portion, the second cache portion including a multi-way cache. The cache memory includes asymmetric sets in the first cache portion and the second cache portion, the first cache portion being larger than the second cache portion. A coordinated replacement policy for the cache memory provides for replacement of data in the first cache portion and the second cache portion.
Abstract translation: 实施例通常涉及包括直接映射高速缓存部分和多路高速缓存部分的非对称集合组合高速缓存。 处理器可以包括用于处理数据的一个或多个处理核心,以及高速缓存存储器,用于从一个或多个处理核心的主存储器缓存数据,高速缓存存储器包括第一高速缓存部分,第一高速缓存部分包括直接 - 映射的高速缓存和第二高速缓存部分,所述第二高速缓存部分包括多路高速缓存。 高速缓存存储器包括第一高速缓存部分和第二高速缓存部分中的非对称集合,第一高速缓存部分大于第二高速缓存部分。 缓存存储器的协调替换策略提供了第一高速缓存部分和第二高速缓存部分中的数据的替换。
-
公开(公告)号:US20160252952A1
公开(公告)日:2016-09-01
申请号:US14634777
申请日:2015-02-28
Applicant: Intel Corporation
Inventor: Israel Diamand , Asaf Rubinstein , Arik Gihon , Tal Kuzi , Tomer Ziv , Nadav Shulman
IPC: G06F1/32
CPC classification number: G06F1/3296 , G06F1/26 , G06F1/3228 , G06F1/324 , Y02D10/126 , Y02D10/172 , Y02D50/20
Abstract: In an embodiment, a processor includes a first core and a power management agent (PMA), coupled to the first core, to include a static table that stores a list of operations, and a plurality of columns each to specify a corresponding flow that includes a corresponding subset of the operations. Execution of each flow is associated with a corresponding state of the first core. The PMA includes a control register (CR) that includes a plurality of storage elements to receive one of a first value and a second value. The processor includes execution logic, responsive to a command to place the first core into a first state, to execute an operation of a first flow when a corresponding storage element stores the first value and to refrain from execution of an operation of the first flow when the corresponding element stores the second value. Other embodiments are described and claimed.
Abstract translation: 在一个实施例中,处理器包括耦合到第一核的第一核和电源管理代理(PMA),以包括存储操作列表的静态表,以及多个列,以指定包括 相应的操作子集。 每个流的执行与第一核的相应状态相关联。 PMA包括控制寄存器(CR),其包括多个存储元件以接收第一值和第二值中的一个。 处理器包括执行逻辑,响应于将第一核放入第一状态的命令,当对应的存储元件存储第一值时,执行第一流的操作,并且当第一流处于 相应的元素存储第二个值。 描述和要求保护其他实施例。
-
公开(公告)号:US20240220410A1
公开(公告)日:2024-07-04
申请号:US18089757
申请日:2022-12-28
Applicant: Intel Corporation
Inventor: Ayan Mandal , Prasanna Pandit , Neetu Jindal , Israel Diamand , Asaf Rubinstein , Leon Polishuk , Oz Shitrit
IPC: G06F12/0806
CPC classification number: G06F12/0806 , G06F2212/62
Abstract: Methods and apparatus relating to leveraging system cache for performance cores are described. In an embodiment, a system cache stores one or more cachelines that are to be evicted from a processor cache. Logic circuitry determines whether to store the one or more cachelines in the system cache based at least in part on comparison of a threshold value with a hit rate associated with the one or more cachelines. Other embodiments are also disclosed and claimed.
-
19.
公开(公告)号:US20240220408A1
公开(公告)日:2024-07-04
申请号:US18089782
申请日:2022-12-28
Applicant: Intel Corporation
Inventor: Nadav Bonen , Israel Diamand , Julius Mandelblat , Asaf Rubinstein , Igor Brainman
IPC: G06F12/0802
CPC classification number: G06F12/0802 , G06F2212/1016
Abstract: Methods and apparatus relating to dynamic allocation schemes applied to a memory side cache for bandwidth and/or performance optimization are described. In an embodiment, a memory side cache stores a portion of data to be stored in a main memory. Logic circuitry determines whether to allocate a portion of the memory side cache for use by a device. The remaining portion of the memory side cache is to be used by a processor. The allocated portion of the memory side cache is reallocated for use by the processor in response to a determination that the allocated portion of the memory side cache is no longer to be used by the device. Other embodiments are also disclosed and claimed.
-
公开(公告)号:US11422939B2
公开(公告)日:2022-08-23
申请号:US16727657
申请日:2019-12-26
Applicant: Intel Corporation
Inventor: Israel Diamand , Ravi K. Venkatesan , Shlomi Shua , Oz Shitrit , Michael Behar , Roni Rosner
IPC: G06F12/00 , G06F12/084 , G06F12/126
Abstract: Disclosed embodiments relate to a shared read request (SRR) using a common request tracker (CRT) as a temporary cache. In one example, a multi-core system includes a memory and a memory controller to receive a SRR from a core when a Leader core is not yet identified, allocate a CRT entry and store the SRR therein, mark it as a Leader, send a read request to a memory address indicated by the SRR, and when read data returns from the memory, store the read data in the CRT entry, send the read data to the Leader core, and await receipt, unless already received, of another SRR from a Follower core, the other SRR having a same address as the SRR, then, send the read data to the Follower core, and deallocate the CRT entry.
-
-
-
-
-
-
-
-
-