摘要:
In a method of and system for program thread synchronization, an instruction cache line is determined each of a plurality of program threads to be synchronized. For each processor executing one or more of the threads to be synchronized, execution of the thread is halted at a barrier by rendering the determined instruction cache line unavailable. Execution of the threads resumes by rendering the determined instruction cache lines available.
摘要:
Various embodiments of the present invention are directed to photonic interconnects that can be used for on-chip as well as off-chip communications between computer system components. In one embodiment of the present invention, a photonic interconnect comprises a plurality of on-chip waveguides. Additionally, the photonic interconnect may include a plurality of off-chip waveguides, and at least one optoelectronic converter. The at least one optoelectronic converter can be photonically coupled to a portion of the plurality of on-chip waveguides, can be photonically coupled to a portion of the plurality of off-chip waveguides, and is in electronic communication with at least one computer system component.
摘要:
A selective multilevel caching method and system including a main memory and a plurality of cache memories are disclosed. The main memory and cache memories are arranged in a multilevel hierarchy: the main memory is at the lowest hierarchical level; the cache memory that is coupled directly to the central processing unit (CPU) is at the highest hierarchical level; and the remaining cache memories are coupled in the hierarchy at intermediate hierarchical levels therebetween. Each hierarchical level contains cache logic as well as a cache memory. Each cache logic responds to a cache level code that is associated with an address specified in each CPU read or write data request. The cache level code specifies the highest hierarchical level at which data associated with the data request may be written. Each cache logic uses the cache level code to determine if data will be written to the cache memory at the same hierarchical level as that cache logic. Each CPU write request further includes a cache control code. The cache control code indicates whether each cache level is designated as a write-allocate cache level. Each cache logic responds also to the cache control code to further determine if data will be written to the cache memory at the same hierarchical level as that cache logic.
摘要:
An example apparatus includes a row address register to store a row address corresponding to a row in a memory array. The example apparatus also includes a row decoder coupled to the row address register to assert a signal on a wordline of the row after the memory receives a column address. In addition, the example apparatus includes a column decoder to selectively activate a portion of the row based on the column address and the signal asserted on the wordline.
摘要:
A multi-level cell memory includes a memory cell that stores two or more bits of information; a sensing circuit coupled to the memory cell; and a row buffer structure comprising a split page buffer having a first page buffer and a second page buffer. The sensing circuit operates to read from and write to the memory device, places a first bit in one of the first page buffer and the second page buffer, and places the second bit in one of the first page buffer and the second page buffer.
摘要:
An error test routine tests for a type of memory error by changing a content of a memory module. A memory handling procedure isolates the memory error in response to a positive outcome of the error test routine. The error test routine and memory handling procedure are to be performed at runtime transparent to an operating system. Information corresponding to isolating the memory error is stored.
摘要:
A system may use local error detection (LED) and global error correction (GEC) information to check data fidelity and correct an error. The LED may be calculated per cache line segment of data associated with a rank of a memory. Data fidelity may be checked in response to a memory read operation, based on the LED information, to identify a presence of an error and the location of the error among cache line segments of the rank. The cache line segment having the error may be corrected based on the GEC, in response to identifying the error.
摘要:
An integrated circuit package includes a digital logic die disposed on a substrate; and an interposer die stacked vertically with the digital logic die on the substrate. The interposer die includes at least one vertical transistor configured to selectively provide electrical power to a portion of the digital logic die.
摘要:
A circuit switched optical interconnection fabric includes a first hollow metal waveguide and a second hollow metal waveguide which intersects the first hollow metal waveguide to form an intersection. An optical element within the intersection is configured to selectively direct an optical signal between the first hollow metal waveguide and a second hollow metal waveguide.
摘要:
The present invention provides one or more embodiments of an optical interconnect design suitable for providing communication between computer system components in a computer system device. The optical interconnect can be integrated on a chip, and can be used to implement complex chips with a large number of cooperating components.