Abstract: Permute instructions for register-based lookups is described. In accordance with the described techniques, a processor is configured to perform a register-based lookup by retrieving a first result from a first lookup table based on a subset of bits included in an index of a destination register, retrieving a second result from a second lookup table based on the subset of bits included in the index of the destination register, selecting the first result or the second result based on a bit in the index of the destination register that is excluded from the subset of bits, and overwriting data included in the index of the destination register using a selected one of the first result or the second result.

Abstract: Resource access control is described. In accordance with the described techniques, a process (e.g., an application process, a system process, etc.) issues an instruction seeking access to a computation resource (e.g., a processor resource, a memory resource, etc.) to perform a computation task. An execution context for the instruction is checked to determine whether the execution context includes a resource indicator indicating permission to access the processor resource. Alternatively or additionally, the instruction is checked against an access table which identifies processes that are permitted and/or not permitted to access the computation resource.

Abstract: In accordance with described techniques for processing-in-memory (PIM) search stop control, a computing system or computing device includes a memory system that includes a stop condition check component, which receives an instruction that includes a programmed check value. The stop condition check component compares the programmed check value to outputs of a PIM component, and the stop condition check component initiates a stop instruction to stop the PIM component from processing subsequent computations based on an output of the PIM component matching the programmed check value.

Abstract: Induced signal marginality for random number generation is described. In accordance with the described techniques, a pseudorandom number is transmitted across an interface while the interface is operated with settings configured to cause instability in the interface. A random number is received as an output of the interface. The settings configured to cause instability in the interface include overclocked settings of interface operating parameters.

Abstract: Scheduling processing-in-memory transactions is described. In accordance with the described techniques, a memory controller receives a transaction header from a host, where the transaction header describes a number of operations to be executed by a processing-in-memory component as part of performing the transaction. The memory controller adds the transaction header to a buffer and sends either an acknowledgement message or a negative acknowledgement message to the host, based on a current load of the processing-in-memory component. The acknowledgement message causes the host to send operations of the transaction for execution by the processing-in-memory component and the negative acknowledgement message causes the host to refrain from sending the operations of the transaction for execution by the processing-in-memory component.

Abstract: A memory controller includes a command queue, an arbiter, and a controller. The controller is responsive to a repair signal for migrating data from a failing region of a memory to a buffer, generating at least one command to perform a post-package repair operation of the failing region, and migrating the data from the buffer to a substitute region of the memory. The controller migrates the data to and from the buffer by providing migration read requests and migration write requests, respectively, to the command queue. The arbiter uses the plurality of arbitration rules for both the read migration requests and the write migration requests, and the read access requests and the write access requests.

Abstract: A processing device used for MBIST is provided which comprises a data storage structure configured to store data, data protection circuitry configured to add at least one protection bit to corresponding portions of the data written to the data storage structure, data protection checking circuitry configured to identify one or more errors made by the data protection circuitry and an MBIST controller configured to receive the corresponding portions of data written to the data storage structure and receive at least one indication identifying the one or more errors.

Abstract: Adaptive scheduling of memory requests and processing-in-memory requests is described. In accordance with the described techniques, a memory controller receives a plurality of processing-in-memory requests and a plurality of non-processing-in-memory requests from a host. The memory controller schedules an order of execution for the plurality of processing-in-memory requests and the plurality of non-processing-in-memory requests based at least in part on a processing-in-memory request stall threshold and a non-processing-in-memory request stall threshold. In response to a system switching (e.g., from executing processing-in-memory requests to executing non-processing-in-memory requests or from executing non-processing-in-memory requests to executing processing-in-memory requests), the memory controller modifies the processing-in-memory request stall threshold and the non-processing-in-memory request stall threshold.

Abstract: The disclosed computing device can include at least one memory of a particular type having a plurality of memory channels, and at least one memory of at least one other type having a plurality of links. The computing device can also include remapping circuitry configured to homogenously interleave the plurality of memory channels with the at least one memory of the at least one other type. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A technique for performing ray tracing operations is provided. The technique includes determining error bounds for a rotation operation for a ray; selecting a technique for determining whether the ray intersects a bounding box based on the error bounds; and determining whether the ray hits the bounding box based on the selected technique.

Abstract: An exemplary system comprises a cluster of nodes that are communicatively coupled to one another via at least one direct link and collectively include a plurality of memory devices. The exemplary system also comprises at least one system memory manager communicatively coupled to the cluster of nodes. In one example, the system memory manager is configured to allocate a plurality of sharable memory pools across the memory devices. Various other systems, methods, and computer-readable media are also disclosed.

Abstract: The disclosed computer-implemented method includes locating, from a processor storage, a partial tag corresponding to a memory request for a line stored in a memory having a tiered memory cache and in response to a partial tag hit for the memory request, locating, from a partition of the tiered memory cache indicated by the partial tag, a full tag for the line. The method also includes fetching, in response to a full tag hit, the requested line from the partition of the tiered memory cache. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Automated memory overclocking is described. In accordance with the described techniques, one or more sets of overclocked memory settings of a memory are automatically selected for performance testing and stability testing of the memory. The one or more sets of the overclocked memory settings are tested for performance of the memory and a performance indication is output for each of the one or more sets of the overclocked memory settings. The one or more sets of the overclocked memory settings are tested for stability of the memory and a stability indication is output for each of the one or more sets of the overclocked memory settings. One of the one or more sets of the overclocked memory settings are selected as optimized overclocked memory settings for the memory.

Abstract: The disclosed device for power management of chiplet interconnects includes multiple chiplets connected via multiple interconnects. The device also includes a control circuit that detects activity states of the chiplets and manages power states of the interconnects based on the detected activity states. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Partial address memory requests for data are described. In accordance with the described techniques, an accelerator receives a request for data that does not include address information for a data storage location from which the data is to be retrieved. The accelerator identifies at least one data storage location that includes data produced by the accelerator and retrieves the data from the at least one data storage location. A result is then output by the accelerator that includes the data retrieved from the at least one data storage location.

Abstract: The disclosed computer-implemented method includes partitioning a cache structure into a plurality of cache partitions designated by a plurality of cache types, forwarding a memory request to a cache partition corresponding to a target cache type of the memory request, and performing, using the cache partition, the memory request. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: In accordance with described techniques for PE-centric all-to-all communication, a distributed computing system includes processing elements, such as graphics processing units, distributed in clusters. An all-to-all communication procedure is performed by the processing elements that are each configured to generate data packets in parallel for all-to-all data communication between the clusters. The all-to-all communication procedure includes a first stage of intra-cluster parallel data communication between respective processing elements of each of the clusters; a second stage of inter-cluster data exchange for all-to-all data communication between the clusters; and a third stage of intra-cluster data distribution to the respective processing elements of each of the clusters.

Abstract: A page swapping memory protection system tracks accesses to physical memory pages, such as in a table with each row storing a physical memory page address and a counter value. This counter value records the number of accesses (e.g., read access or write accesses) to the corresponding physical memory page. In response to one of the counters exceeding a threshold value, the corresponding physical memory page is swapped with another page in physical memory (e.g., a page the table indicates has a smallest number of accesses). According, unreliability in the physical memory introduced due to frequent accesses to a particular physical memory page is mitigated.

Abstract: A processing system including a parallel processing unit selectively allocating pages of memory for interleaving across configurable subsets of channels based on a mode of allocation. In some embodiments, in a first mode, a page of memory is allocated to and interleaved across a plurality of channels, and in a second mode, a page of memory is allocated to and interleaved across a subset of the plurality of channels.

Abstract: In accordance with described techniques for DRAM row management for processing in memory, a plurality of instructions are obtained for execution by a processing in memory component embedded in a dynamic random access memory. An instruction is identified that last accesses a row of the dynamic random access memory, and a subsequent instruction is identified that first accesses an additional row of the dynamic random access memory. A first command is issued to close the row and a second command is issued to open the additional row after the row is last accessed by the instruction.