Abstract: An information processing apparatus calculates a plurality of first molecular energies corresponding to a plurality of first interatomic distances by using a first algorithm that iteratively updates a solution until a convergence condition is satisfied. The information processing apparatus specifies, based on a slope of a line segment indicating a relationship between the plurality of first interatomic distances and iteration counts, a plurality of second interatomic distances for which molecular energy is to be calculated by using a second algorithm. The information processing apparatus calculates second molecular energies corresponding to the specified plurality of second interatomic distances by using the second algorithm.

Abstract: A non-transitory computer-readable recording medium stores a program for causing a computer to execute a process, the process includes detecting activation of a first application by a predesignated first user, determining one or more first central processing unit (CPU) cores that execute one or more tools that perform profiling of the first application from among a plurality of CPU cores in response to the detection, activating the one or more tools with the determined one or more first CPU cores, associating the first application with each of the one or more activated tools, causing each of the one or more tools to perform the profiling, and outputting an execution result of the profiling.

Abstract: A computer-readable recording medium having stored therein a program for causing a computer to execute a process including: calculating, based on first information indicating an access pattern of a plurality of subsets in step of a cross validation process of a machine learning model and indicating two or more of the subsets used in each step, a count that each subset is consecutively used over steps among steps in each pattern for execution orders of the steps; determining an order of the steps of the cross validation process from the orders of candidate patterns, the determined order having a largest total of the counts of the subsets; and arranging a given number of subsets having largest counts from a top over steps in the determined order into a second memory having an accessing speed higher than an accessing speed of a first memory, the first memory storing the subsets.

Abstract: An engine is provided, which includes an engine body including a cylinder provided with intake and exhaust ports and intake and exhaust valves, intake and exhaust passages, a turbocharger including a turbine provided to the exhaust passage and a compressor provided to the intake passage, and a variable phase mechanism configured to change open/close timings of the intake valve while maintaining an open period of the intake valve at a 270° C.A or larger. A geometric compression ratio of the cylinder is 11:1 or higher. In a high-load range, the variable phase mechanism sets the intake valve close timing to be after an intake BDC and to make a ratio of a retarded amount of the intake closing to the geometric compression ratio be 4.58 or above and 6.67 or below, and sets the intake valve open timing to be before a close timing of the exhaust valve.

Abstract: An engine is provided, which includes an engine body including a plurality of cylinders, each of the cylinders being provided with an intake port, an exhaust port, an intake valve, and an exhaust valve, an intake passage and an exhaust passage connected to the engine body, and a turbocharger including a turbine provided to the exhaust passage and a compressor provided to the intake passage. A geometric compression ratio of the cylinder is 11:1 or higher. An open period of the intake valve is a range of 270° or larger by a crank angle. The exhaust passage includes a plurality of independent exhaust passages, each communicating with the exhaust port of one cylinder or with the exhaust ports of two or more cylinders of which timings of exhaust strokes are discontinuous from each other, and connecting the engine body to the turbine.

Abstract: An information processing apparatus includes: a first memory; a second memory different in processing speed from the first memory; and a processor including: a memory controller that is coupled to the first memory and the second memory and that controls an access to the first memory and an access to the second memory; and a plurality of controllers that access to the first memory or the second memory. The processor is configured to suppress a writing frequency of data into the second memory by controlling one or more first controllers that access the second memory among the plurality of controllers in accordance with a result of monitoring a state of writing the data into the second memory.

Abstract: An information processing device 1 acquires the total number of rewriting times for each of modules of persistent memories (PMEM), and acquires the number of times a specific file is rewritten based on the numbers of times respective pages of PMEMs 301 to 303 are rewritten, and when the number of times the specific file is rewritten is equal to or larger than a transfer threshold, transfers the specific file to a module with a first total number of rewriting times that is smaller than a second total number of rewriting times of a source module in which the specific file is stored.

Abstract: An engine is provided, which includes a combustion chamber defined by a piston crown surface, an inner wall surface of a cylinder, and a pentroof ceiling surface formed in a cylinder head, and an ignition part of a spark plug disposed at the ceiling surface to achieve flame propagation combustion inside the combustion chamber. A cavity recessed in a spherical cap shape is formed in a central area of the crown surface. An opening of an intake port is formed in the ceiling surface (intake side) and an opening of an exhaust port is formed in the ceiling surface (exhaust side). When seen in a cross-sectional view taken along a cylinder axis, the ignition part is located above the cavity to be offset toward the exhaust side with respect to a cylinder axial line whereas a cavity center point is located to be offset toward the intake side.

Abstract: An information processing apparatus including a plurality of groups, each group including a first memory, a second memory different in process speed from the first memory, and a processor including a memory controller that is connected to the first memory and the second memory and that controls an access from a process to the first memory and the second memory, wherein a first processor among a plurality of the processors of the plurality of groups is configured to determine, based on a characteristic of a plurality of the processes accessing data stored in the first memory or the second memory in each of the plurality of groups, an allocation of the plurality of processes onto the plurality of processors.

Abstract: An information processing apparatus including: a first storage device; a second storage device having lower performance than performance of the first storage device; and a control circuit configured to perform processing including: copying data from the first storage device to the second storage device to make the data persistent; estimating, based on statistical information acquirable by hardware, an overhead of a first restoration method in which the data is restored by copying the data from the second storage device to the first storage device and an overhead of a second restoration method in which the data in the second storage device is used as it is; and restoring the data that becomes persistent, based on a restoration method having a smaller overhead of the respective estimated overheads of the first restoration method and the second restoration method, when restoring the data.

Abstract: An engine is provided, which includes a combustion chamber defined by a piston crown surface, an inner wall surface of a cylinder, and a pentroof ceiling surface formed in a cylinder head, and an ignition part of a spark plug disposed at the ceiling surface to achieve flame propagation combustion inside the combustion chamber. A cavity recessed in a spherical cap shape is formed in a central area of the crown surface. An opening of an intake port is formed in the ceiling surface (intake side) and an opening of an exhaust port is formed in the ceiling surface (exhaust side). When seen in a cross-sectional view taken along a cylinder axis, the ignition part is located above the cavity to be offset toward the exhaust side with respect to a cylinder axial line whereas a cavity center point is located to be offset toward the intake side.

Abstract: An engine is provided, which includes an engine body including a plurality of cylinders, each of the cylinders being provided with an intake port, an exhaust port, an intake valve, and an exhaust valve, an intake passage and an exhaust passage connected to the engine body, and a turbocharger including a turbine provided to the exhaust passage and a compressor provided to the intake passage. A geometric compression ratio of the cylinder is 11:1 or higher. An open period of the intake valve is a range of 270° or larger by a crank angle. The exhaust passage includes a plurality of independent exhaust passages, each communicating with the exhaust port of one cylinder or with the exhaust ports of two or more cylinders of which timings of exhaust strokes are discontinuous from each other, and connecting the engine body to the turbine.

Abstract: An engine is provided, which includes an engine body including a cylinder provided with intake and exhaust ports and intake and exhaust valves, intake and exhaust passages, a turbocharger including a turbine provided to the exhaust passage and a compressor provided to the intake passage, and a variable phase mechanism configured to change open/close timings of the intake valve while maintaining an open period of the intake valve at a 270° C.A or larger. A geometric compression ratio of the cylinder is 11:1 or higher. In a high-load range, the variable phase mechanism sets the intake valve close timing to be after an intake BDC and to make a ratio of a retarded amount of the intake closing to the geometric compression ratio be 4.58 or above and 6.67 or below, and sets the intake valve open timing to be before a close timing of the exhaust valve.

Abstract: An information processing apparatus includes: a processor; a first memory that is volatile and is coupled to the processor; a block device that is coupled to the processor; and at least one second memory that is nonvolatile, is coupled to the processor and that is configured to function as the first memory and the block device, and the processor controls a write method of the at least one second memory that functions as the block device in accordance with a usage status of the first memory so as to switch the function as the block device to the function as the first memory in the at least one second memory.

Abstract: An information processing apparatus includes: a first memory; a second memory different in processing speed from the first memory; and a processor including: a memory controller that is coupled to the first memory and the second memory and that controls an access to the first memory and an access to the second memory; and a plurality of controllers that access to the first memory or the second memory. The processor is configured to suppress a writing frequency of data into the second memory by controlling one or more first controllers that access the second memory among the plurality of controllers in accordance with a result of monitoring a state of writing the data into the second memory.

Abstract: A structure of a combustion chamber for an engine includes a crown surface of a piston, a combustion chamber ceiling surface, an injector and an ignition plug provided on the combustion chamber ceiling surface, and an intake opening and an exhaust opening opened in the combustion chamber ceiling surface. A side where the intake opening is opened is defined as an intake port side, and a side where the exhaust opening is opened is defined as an exhaust port side. An ignition portion of the ignition plug is disposed on the intake port side. The ignition plug is ignited at a timing after the piston passes a compression top dead center. The injector is disposed on the center portion, and is configured to inject fuel toward the exhaust port side. A cavity is provided on the crown surface. A reverse squish flow generation portion is provided in the combustion chamber.

Abstract: An apparatus includes: a memory; and a processor coupled to the memory, the processor being configured to execute an access processing that includes making access to a storage, execute a monitoring processing that includes monitoring a state of usage of the storage in given timing, and execute a control processing that includes changing an operating frequency of the processor performing the access processing according to a monitoring result of the monitoring processing.

Abstract: A structure of a combustion chamber for an engine includes a crown surface of a piston, a combustion chamber ceiling surface formed on a cylinder head, an injector and an ignition plug provided on the combustion chamber ceiling surface, and an intake opening and an exhaust opening opened in the combustion chamber ceiling surface. A side where the intake opening is opened is defined as an intake port side, and a side where the exhaust opening is opened is defined as an exhaust port side, with respect to a position, as a reference, where an ignition portion of the ignition plug is disposed in a plan view from one side in a cylinder axis direction, the injector is configured to inject fuel toward the exhaust port side, and a reverse squish flow generation portion, which draws an air-fuel mixture toward the intake port side, is provided in the combustion chamber.

Abstract: An apparatus includes: a first memory; a second memory different in processing speed from the first memory; and a processor comprising a memory controller, the memory controller being connected to the first memory and the second memory and controlling accesses to the first memory and the second memory. The processor being configured to: output a transfer request for data to be transferred from the first memory to the second memory or data to be transferred from the second memory to the first memory; control, based on one or more first accesses to the first memory and the second memory through the memory controller and a data amount to be transferred in a second access to the first memory and the second memory through the memory controller in response to the transfer request, an execution timing of the second access; and execute the second access at the controlled execution timing.

Abstract: A structure of a combustion chamber for an engine includes a crown surface of a piston, a cylinder wall surface, a combustion chamber ceiling surface, and an ignition plug which includes an ignition portion. The crown surface of the piston includes: a cavity recessed in the cylinder axis direction; a parallel surface portion which is in parallel to a corresponding region on the combustion chamber ceiling surface at a position above the cylinder axis direction with a gap, when the piston is at a compression top dead center; and an inclined surface portion formed to continue to the parallel surface portion in such a way as to be directed to the ignition plug, when the piston is at a compression top dead center. The parallel surface portion and the corresponding region, in combination, constitute a squish flow generation portion generating a squish flow when the piston is lifted.