Abstract: A method for copying and transferring data by remote data memory access resulting in faster data transfer speeds is provided. The method includes determining an amount of garbage data of data information, and comparing the amount of garbage data to a threshold amount. In response to the amount of garbage data being below the threshold amount, a first portion of data that includes intended data of the data information and the garbage data is copied to a remote place. In response to the amount of garbage data exceeding threshold amount, a second portion of data that includes only the intended data is copied to the remote place by a scatter/gather input/output method of a remote data memory access protocol. The copied data is returned to a free list of the remote place.

Abstract: Described herein are methods of transferring arrays of data information by remote data memory access (RDMA). According to the method, data information in data arrays in a local place identified. The intended data and garbage data are identified. Contiguous intended data and garbage data are copied to a remote place when the amount of garbage data is below a threshold garbage data criteria, and only intended data is copied to the remote place when the amount of garbage data is above the threshold garbage data criteria amount. Copying relies on scatter/gather input/output of RDMA. The garbage data transferred to the remote place is forwarded to a free list of the remote place.

Abstract: A computer-implemented method and a computer processing system are provided for increasing memory density in a memory using heap contraction. The method includes dividing the heap into a plurality of work regions including a last region and other regions such the last region is larger in size than the other regions. The method further includes calculating a size of the heap contraction. The method also includes forming a pair of the last region and one of the other regions that has a largest free portion. The method additionally includes executing intra-table compaction and inter-table compaction on the heap. The method further includes contracting the last region by subtracting a prescribed space from the last region.

Abstract: Methods and a system are provided. A method includes implementing a function, which a compiler for a first language does not have, using a compiler for a second language. The implementing step includes generating, by the compiler for the first language, a first abstract syntax tree. The implementing step further includes converting, by a converter, the first abstract syntax tree to a second abstract syntax tree of the compiler for the second language using a conversion table from data representation types in the first language to data representation types in the second language. When a compilation error occurs, the implementing step also includes generating a special node for error processing in the second abstract syntax tree and storing an error token in the special node. When unparsing, the implementing step additionally includes outputting the error token, in the form of source code written in the first language.

Abstract: Described herein are methods of transferring arrays of data information by remote data memory access (RDMA). The method may include identifying data arrays in a local place that are to be copied to a remote place; and determining whether the data arrays are to be overwritten by analyzing asynchronous blocks from the data arrays in the local place at a start compilation time using a static compiler. The method may further include executing transfer of the data arrays from the local place to the remote place with a pull type RDMA.

Abstract: Described herein are methods of transferring arrays of data information by remote data memory access (RDMA). According to the method, data information in data arrays in a local place identified. The intended data and garbage data are identified. Contiguous intended data and garbage data are copied to the remote place when the amount of garbage data is below a threshold garbage data criteria, and only intended data is copied to the remote place when the amount of garbage data is above the threshold garbage data criteria amount. Copying relies on scatter/gather input/output of RDMA. The garbage data transferred to the remote place is forwarded to a free list of the remote place.

Abstract: Methods are provided for copying, from a local place to a remote place, only array variables from a set at the local place that are used at the remote place. A method includes identifying the array based on the array meeting a condition of being defined outside of a code block for a copy command and used inside of the code block. The copy command mandates a copying of all the array variables in the set from the local place to the remote place. The method includes generating a function having code that selectively serializes or deserializes only the array variables from the set that are used at the remote place. The method includes serializing, at the local place, and deserializing at the remote place, only the array variables from the set that are used at the remote place, by invoking the function.

Abstract: Methods and a system are provided. A method includes implementing a function, which a compiler for a first language does not have, using a compiler for a second language. The implementing step includes generating, by the compiler for the first language, a first abstract syntax tree. The implementing step further includes converting, by a converter, the first abstract syntax tree to a second abstract syntax tree of the compiler for the second language using a conversion table from data representation types in the first language to data representation types in the second language. When a compilation error occurs, the implementing step also includes generating a special node for error processing in the second abstract syntax tree and storing an error token in the special node. When unparsing, the implementing step additionally includes outputting the error token, in the form of source code written in the first language.

Abstract: Methods and a system are provided. A method includes implementing a function, which a compiler for a first language does not have, using a compiler for a second language. The implementing step includes generating, by the compiler for the first language, a first abstract syntax tree. The implementing step further includes converting, by a converter, the first abstract syntax tree to a second abstract syntax tree of the compiler for the second language using a conversion table from data representation types in the first language to data representation types in the second language. When a compilation error occurs, the implementing step also includes generating a special node for error processing in the second abstract syntax tree and storing an error token in the special node. When unparsing, the implementing step additionally includes outputting the error token, in the form of source code written in the first language.

Abstract: Methods and a system are provided. A method includes implementing a function, which a compiler for a first language does not have, using a compiler for a second language. The implementing step includes generating, by the compiler for the first language, a first abstract syntax tree. The implementing step further includes converting, by a converter, the first abstract syntax tree to a second abstract syntax tree of the compiler for the second language using a conversion table from data representation types in the first language to data representation types in the second language. When a compilation error occurs, the implementing step also includes generating a special node for error processing in the second abstract syntax tree and storing an error token in the special node. When unparsing, the implementing step additionally includes outputting the error token, in the form of source code written in the first language.

Abstract: Methods and a system are provided. A method includes implementing a function, which a compiler for a first language does not have, using a compiler for a second language. The implementing step includes generating, by the compiler for the first language, a first abstract syntax tree. The implementing step further includes converting, by a converter, the first abstract syntax tree to a second abstract syntax tree of the compiler for the second language using a conversion table from data representation types in the first language to data representation types in the second language. When a compilation error occurs, the implementing step also includes generating a special node for error processing in the second abstract syntax tree and storing an error token in the special node. When unparsing, the implementing step additionally includes outputting the error token, in the form of source code written in the first language.