Abstract:
A mounting assembly includes two side rails that mechanically couple to at least two sides on an exterior of a device, where a given side rail includes one or more circumferential edges that define one or more holes on a surface and into an interior of the given side rail, and the surface is approximately parallel to one of the at least two sides on the exterior of the device. Moreover, the mounting assembly includes mechanical collars that mechanically couple to mechanical couplers that mechanically couple the mounting assembly to a chassis in a computer system, where a given mechanical collar is included in a given hole in the given side rail. Additionally, the mounting assembly includes energy-absorbing material encapsulating the mechanical collars, where the energy-absorbing material is positioned between an outer surface of the given mechanical collar and an inner surface of the given hole.
Abstract:
One embodiment of the present invention provides a system that performs thread migration within an array of computing nodes, wherein computing nodes in the array contain central processing units (CPUs) and/or memories. During operation, the system identifies CPUs within the array of computing nodes that are available to accept a given thread. For each available CPU, the system computes an average communication distance between the CPU and memories which are accessed by the given thread. Next, the system determines whether to move the given thread to an available CPU based on the average communication distance for the available CPU.
Abstract:
A hardware unit for parsing an XML document includes embedded logic or circuitry for accessing the document, decoding it to change a character set, validating individual characters of the document, extracting tokens, maintaining a symbol table and generating binary token headers to describe the document's structure and convey the document's data to an application. Tokenization, the process of identifying tokens and generating token headers, may be controlled by a finite state machine that recognizes XML delimiters in the document's markup and activates state transitions based on the current state and the recognized delimiter. The parser unit may be implemented within a hardware XML accelerator that includes a processor, a DMA engine, a cryptographic engine, memory (e.g., for storing a document, maintaining a symbol table) and various interfaces (e.g., network, memory, bus).
Abstract:
Embodiments of the present invention provide a system that executes program code in a processor. The system starts by executing the program code in a normal mode using a primary strand while concurrently executing the program code ahead of the primary strand using a subordinate strand in a scout mode. Upon resolving a branch using the subordinate strand, the system records a resolution for the branch in a speculative branch resolution table. Upon subsequently encountering the branch using the primary strand, the system uses the recorded resolution from the speculative branch resolution table to predict a resolution for the branch for the primary strand. Upon determining that the resolution of the branch was mispredicted for the primary strand, the system determines that the subordinate strand mispredicted the branch. The system then recovers the subordinate strand to the branch and restarts the subordinate strand executing the program code.
Abstract:
Embodiments of a system for regulating an efficiency of a power supply in a computer system are described. During operation, the system measures an output load of the power supply using one or more telemetry monitors in the computer system. Then, the system determines if an efficiency of the power supply corresponding to the measured output load is within a predetermined range that includes an optimal efficiency of the power supply. If the efficiency is outside of the predetermined range, the system performs remedial action so that the power supply operates at an adjusted efficiency that falls within the predetermined range.
Abstract:
A multi-stage mezzanine board mounting assembly within a computer chassis includes a mezzanine tray and mezzanine mounting brackets. The mezzanine tray includes a clamping mechanism. The mezzanine mounting brackets are disposed within the computer chassis and configured to engage with the mezzanine tray when the mezzanine tray is mounted thereon. The clamping mechanism is configured to clamp the mezzanine tray against the mezzanine mounting brackets such that the mezzanine tray is locked in place on the mezzanine mounting brackets. A method of installing a mezzanine board includes disposing mezzanine mounting brackets within a computer chassis; mounting a mezzanine tray onto the mezzanine mounting brackets such that insertion alignment members of the mezzanine tray engage with an engaging portion of the mezzanine mounting brackets; rotating rotatable clamping levers such that the mezzanine tray is locked in place on the mezzanine mounting brackets when the rotatable clamping levers are fully engaged.
Abstract:
In a hard disk drive (HDD) vibration control device disposed on a HDD bracket including a HDD, the HDD vibration control device includes a main body portion, a rear clip, a front clip, a left rail spring, and a right rail spring. The main body portion includes a front bar, a rear bar, left bar, and right bar. The rear clip extends down from the rear bar clamped onto the HDD. The front clip extends down from the front bar clamped onto the HDD. The left rail spring includes a first flat portion extending outwards from the left bar and including a first spring portion extending from the first flat portion. The right rail spring includes a second flat portion extending outwards from the right bar and including a second spring portion extending from the second flat portion. The first and second flat portions of the left rail spring the right rail spring rest, respectively, on top surfaces of a left side bracket and right side bracket of the HDD bracket. The first and second spring portions of the left rail spring and the right rail spring arc above the top surfaces of the left side bracket and the right side bracket, and are configured to flex downwards when a force is applied from above.
Abstract:
A cooling system to cool the airflow through a electrical system includes a CNT heat exchanger module disposed within a housing of the electrical system, a cooling device configured to receive a coolant, a unit board disposed within the housing of the electrical system, and an air flow device configured to pass air across at least a portion of the unit board and at least a portion of the CNT heat exchanger module. The CNT heat exchanger module includes a member having a hole defined therethrough and a plurality of carbon nanotubes (CNTs) attached to the member. The coolant is propagated through the hole in the member so as to dissipate the heat generated by the electrical system.
Abstract:
The invention relates to a method for performing generational garbage collection on a heap comprising a plurality of generations. The method involves dividing a young generation of the heap into a first young generation and a second young generation, evacuating the first young generation concurrently with allocating the second young generation, and evacuating the second young generation concurrently with allocating the first young generation and subsequent to fully evacuating the first young generation.
Abstract:
There is described an apparatus and method for implementing a communications port. The apparatus comprises a core, which is operable to divide the port into a plurality of sub-ports by dividing a data transfer capacity of the port among the plurality of sub-ports using time division multiplexing. Each sub-port is allocated a corresponding data transfer capacity.