Iii Holdings 1, LLC

Liquid Computing Corporation

Other

Ernst Munter

Kaiyuan Huang

Michael F Kemp

Damodharan Narayanan

Venkatesh Bathala

A protocol element referred to as a secure handle is described which provides an efficient and reliable method for application-to-application signaling in multi-process and multi-computer environments. The secure handle includes an absolute memory reference which allows the kernel to more quickly and efficiently associate a network data packet with an application's communication context in the kernel.

Secure handle for intra-and inter-processor communications

Secure handle for intra- and inter-processor communications

An embodiment of one of the inventions disclosed herein is a computer system that includes a plurality of interconnected computational hosts, each of which are connected to one of a plurality of buffers. Each of the buffers includes a plurality of buffer spaces. Each of the computational hosts may be configured such that each transfer of a data packet from one of the plurality of computational hosts acting as a source of the data packet to another one of the plurality of computational hosts acting as a destination of the data packet is controlled by an availability of buffer spaces in the buffer coupled to the destination computational host.

Token based flow control for data communication

In a multi-processor system with a high degree of inter processor communication, an operating system extension is described as a kernel function to poll a receive buffer. This is an opportunistic poll that continues to run in the user context after an application process has invoked the kernel with a blocking receive function. It is also running whenever no higher priority task is running. New data packets may be received for the present user application process while avoiding context switches, and for a different user process while avoiding interrupts. A hardware implemented delay timer and a buffer fill monitor generate interrupts when the system is not polling, thus guaranteeing a maximum latency and preventing buffer overflow, but these interrupts are largely avoided by polling when the system is handling a large amount of inter processor data traffic.

Kernel functions for inter-processor communications in high performance multi-processor systems

A reliable method for inter-computer packet transport in multi-process and multi-computer environments includes acknowledgments of received packets. To enhance the reliability and fast recovery of lost packets, a bit-mapped message is used for selective acknowledgments by which individual messages may be selected for retransmission. Further functionalities cover the cases where packets may have been received out-of-order, or an acknowledgment was lost.

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Ernst Munter