Patent application number | Description | Published |
20080229057 | ADAPTIVE PROFILING BY PROGRESSIVE REFINEMENT - A system/method for profiling a sequence of values from a range to determine a frequency of occurrence of a subrange includes, for a current block, determining whether cells of the current block include a count cell or a pointer cell. If the cell includes a pointer cell, follow an address that the pointer makes reference to and designate a new block as the current block and repeat the determining step for the new block. If the cell includes a count cell, increment the count cell and compare the incremented count cell to a threshold. If the count exceeds the threshold, convert the count cell to a pointer cell, which points to a newly allocated block. The newly allocated block is made the current block, and the steps are repeated until count cells do not exceed the threshold or a limit resolution is achieved. | 09-18-2008 |
20080281890 | FAST CORRECTLY-ROUNDING FLOATING-POINT CONVERSION - A system and method for converting bases of floating point numbers using fixed-point computation includes tables having different related spacings of exponent indices. The tables are adapted to cross-reference conversion ratios between exponent bases. The tables are characterized by bi-uniform spacings of source and target exponents and including near-unity table entries representing the conversion ratios. A source number is converted into a target number in a different radix by a sequence of reduction operations using a sequence of the tables. The reduction operations include reducing a source number exponent magnitude and accumulating a target exponent and multiplying a source number mantissa by a selected conversion ratio including a near-unity ratio of powers. A final mantissa is normalized and rounded to produce the target number in a new radix. | 11-13-2008 |
20090235266 | Operating System and Augmenting Operating System and Method for Same - A method for determining status of system resources in a computer system includes loading a first operating system into a first memory, wherein the first operating system discovers system resources and reserves a number of the system resources for use of an augmenting operating system, loading the augmenting operating system into a second memory reserved for the augmenting operating system by the first operating system, accessing the first memory from the augmenting operating system and obtaining data, running a process on the augmenting operating system to perform a computation using the data obtained from the first memory, and outputting the results of the computation using the system resources reserved for the augmenting operating system. | 09-17-2009 |
Patent application number | Description | Published |
20100037081 | Method and Apparatus for Maintaining Time in a Computer System - A computer system is arranged with a circular buffer that includes a piecewise linear map from a high-resolution counter arranged to maintain International Atomic Time. The piecewise linear map includes a current leg that is currently being used and also a future leg that will be used in the future. The future leg is computed while the current leg is still being used. | 02-11-2010 |
20100100762 | BACKUP POWER SOURCE USED IN INDICATING THAT SERVER MAY LEAVE NETWORK - A server of a network of servers determines that its power source is failing. In response, the server communicates to one or more other servers of this network that it is leaving the network. This communication is powered by another power source. | 04-22-2010 |
20100185889 | CHANNEL SUBSYSTEM SERVER TIME PROTOCOL COMMANDS - A protocol for communicating with the timing facility used in a data processing network to provide synchronization is provided via the execution of a machine instruction that accepts a plurality of commands. The interaction is provided through the use of message request blocks and their associated message response blocks. In this way timing parameters may be determined, modified and communicated. This makes it much easier for multiple servers or nodes in a data processing network to exist as a coordinated timing network and to thus more cooperatively operate on the larger yet identical data files. | 07-22-2010 |
20100223317 | SERVER TIME PROTOCOL MESSAGES AND METHODS - Server time protocol (STP) messages and methods of exchange thereof are provided for facilitating synchronization of processing units of a timing network. The STP messages include exchange time parameters (XTP) commands and responses, and STP control (STC) commands and responses. XTP message exchange processing includes: generating an XTP message command at a first processing unit including a command transmit timestamp field set by the first processing unit and a command receive timestamp field which is unset by the first processing unit; transmitting the XTP message command to a second processing unit; setting the command receive timestamp field in the XTP command with the time the XTP command is received at the second processing unit; and generating an XTP message response at the second processing unit, the message response including the command transmit timestamp set by the first processing unit and the command receive timestamp set by the second processing unit. | 09-02-2010 |
20110106968 | Techniques For Improved Clock Offset Measuring - In an exemplary aspect, method, apparatus, and program products are disclosed suitable for clock offset determination. One method includes performing a number of exchanges of at least single bytes with another network node, where values of the single bytes are different for the exchanges. The method also includes capturing and storing timestamps for each of the number of exchanges performed on the network node. A second method includes capturing and saving arrival timestamps for each of a number of timing messages in a set of timing messages received from another network node. This second method also includes sending the timestamps to at least the another node in response to completion of the set of timing messages. | 05-05-2011 |
20130254478 | CHANNEL SUBSYSTEM SERVER TIME PROTOCOL COMMANDS - A protocol for communicating with the timing facility used in a data processing network to provide synchronization is provided via the execution of a machine instruction that accepts a plurality of commands. The interaction is provided through the use of message request blocks and their associated message response blocks. In this way timing parameters may be determined, modified and communicated. This makes it much easier for multiple servers or nodes in a data processing network to exist as a coordinated timing network and to thus more cooperatively operate on the larger yet identical data files. | 09-26-2013 |
20130262424 | DATABASE SYSTEM TRANSACTION MANAGEMENT - Systems, methods, and products for database system transaction management are provided herein. One aspect provides for annotating via a computing device at least one data object residing on the computing device utilizing at least one transaction tag, the at least one transaction tag being configured to indicate a status of an associated data object; processing at least one database transaction utilizing a transactional memory process, wherein access to the at least one data object is determined based on the status of the at least one data object; and updating the status of the at least one data object responsive to an attempted access of the at least one data object by the at least one database transaction. Other embodiments and aspects are also described herein. | 10-03-2013 |
20140188962 | Executing Perform Floating Point Operation Instructions - A perform floating-point operation instruction is executed specifying a Test (T) bit of general register 0, if the T bit is ‘1’ the execution sets a condition code value indicating whether a specified conversion function is installed, if the T bit is ‘0’ the execution stores a result of a specified floating-point conversion function in general register 0 and sets a condition code value. | 07-03-2014 |
20140282583 | DYNAMIC MEMORY MANAGEMENT WITH THREAD LOCAL STORAGE USAGE - Methods and arrangements for dynamic memory management. Data are accepted for thread local storage, and memory usage is monitored in thread local storage. A memory block is allocated to thread local storage for storing accepted data, based on the monitored memory usage. Other variants and embodiments are broadly contemplated herein. | 09-18-2014 |
20140325014 | CHANNEL SUBSYSTEM SERVER TIME PROTOCOL COMMANDS - A protocol for communicating with the timing facility used in a data processing network to provide synchronization is provided via the execution of a machine instruction that accepts a plurality of commands. The interaction is provided through the use of message request blocks and their associated message response blocks. In this way timing parameters may be determined, modified and communicated. This makes it much easier for multiple servers or nodes in a data processing network to exist as a coordinated timing network and to thus more cooperatively operate on the larger yet identical data files. | 10-30-2014 |
Patent application number | Description | Published |
20090094441 | Perform Floating Point Operation Instruction - A method and system are disclosed for executing a machine instruction in a central processing unit. The method comprise the steps of obtaining a perform floating-point operation instruction; obtaining a test bit; and determining a value of the test bit. If the test bit has a first value, (a) a specified floating-point operation function is performed, and (b) a condition, code is set to a value determined by said specified function. If the test bit has a second value, (c) a check is made to determine if said specified function is valid and installed on the machine, (d) if said specified function is valid and installed on the machine, the condition code is set to one code value, and (c) if said specified function is either not valid or not installed on the machine, the condition code is set to a second code value. | 04-09-2009 |
20090257456 | COORDINATED TIMING NETWORK HAVING SERVERS OF DIFFERENT CAPABILITIES - Communication and processing within a timing network that supports servers having different capabilities are facilitated. Individual servers of the network are dynamically updated without disrupting the operational characteristics of the timing network. New capabilities are not utilized between two servers until it is known that both servers are capable of supporting the new features. One server communicates to another server at an acceptable level of the another server. | 10-15-2009 |
20100034103 | Robust Jitter-Free Remote Clock Offset Measuring Method - A clock offset between a client and a server is measured by: (a) the client sending a request to the server; (b) upon receiving the request in step (a), the server optionally sending a server acknowledgement to the client; (c) upon the client receiving the server acknowledgement in step (b) or directly, if no acknowledgement was used, each of the client and the server proceeding to concurrently exchange their respective timestamps with each other a multiplicity (n) of times, thus forming a multiplicity (n) of timestamp exchanges; and (d) determining a plurality of apparent forwards and backwards delays based on the multiplicity (n) of timestamp exchanges. The preferred apparent forwards and backwards delays are then selected based on the minimum values (for each direction) determined in (d) above. The clock offset between client and server is then determined based on the preferred apparent forwards and backwards delays. | 02-11-2010 |
20100100761 | MAINTAINING A PRIMARY TIME SERVER AS THE CURRENT TIME SERVER IN RESPONSE TO FAILURE OF TIME CODE RECEIVERS OF THE PRIMARY TIME SERVER - A primary time server of a Coordinated Timing Network remains as current time server, even if time code information of the primary time server is unavailable. The primary time server receives the necessary or desired timing information from a secondary time server and uses that information to maintain time synchronization within the Coordinated Timing Network. | 04-22-2010 |
20130235992 | PREFERENTIAL EXECUTION OF METHOD CALLS IN HYBRID SYSTEMS - Affinity-based preferential call technique, in one aspect, may improve performance of distributed applications in a hybrid system having heterogeneous platforms. A segment of code in a program being executed on a processor may be intercepted or trapped in runtime. A platform is selected in the hybrid system for executing said segment of code, the platform determined to run the segment of code with best efficiency among a plurality of platforms in the hybrid system. The segment of code is dynamically executed on the selected platform determined to run the segment of code with best efficiency. | 09-12-2013 |
20130239128 | PREFERENTIAL EXECUTION OF METHOD CALLS IN HYBRID SYSTEMS - Affinity-based preferential call technique, in one aspect, may improve performance of distributed applications in a hybrid system having heterogeneous platforms. A segment of code in a program being executed on a processor may be intercepted or trapped in runtime. A platform is selected in the hybrid system for executing said segment of code, the platform determined to run the segment of code with best efficiency among a plurality of platforms in the hybrid system. The segment of code is dynamically executed on the selected platform determined to run the segment of code with best efficiency. | 09-12-2013 |