Sébastien Soudan, Romaric Guillier, Ludovic Hablot, Yuetsu Kodama, Tomohiro Kudoh, Fumihiro Okazaki, ...
Abstract — This paper examines the interactions between high speed Ethernet switches and TCP in high bandwidth delay product networks. First, the behavior of a range of Ethernet switches when two...
Mitsuhisa Sato, Yuetsu Kodama, Hirofumi Sakane, Hayato Yamana, Shuichi Sakai, Yoshinori Yamaguchi
Sparse matrix problems require a communication paradigm different from those used in conventional distributed-memory multiprocessors. We present in this paper how fine-grain communication can help...
Effects of Packet Pacing for MPI Programs in a Grid Environment (2008)
Ryousei Takano, Motohiko Matsuda, Tomohiro Kudoh, Yuetsu Kodama, Fumihiro Okazaki, Yutaka Ishikawa, ...
Abstract — Improving the performance of TCP communication is the key to the successful deployment of MPI programs in a Grid environment in which multiple clusters are connected through high...
A Macrotask-level Unlimited Speculative Execution on Multiprocessors (2008)
Hayato Yamana, Mitsuhisa Sato, Yuetsu Kodama, Hirofumi Sakane
The purpose of this paper is to propose a new fast execution scheme of FORTRAN programs. The proposed scheme enables the fast initiation of macrotask when ita data dependence are satisfied even if...
Mitsuhisa Sato, Yuetsu Kodama, Hirofumi Sakane, Hayato Yamana, Shuichi Sakai, Yoshinori Yamaguchi
Sparse matrix problems require a communication paradigm different from those used in conventional distributed-memory multiprocessors. We present in this paper how fine-grain communication can help...
Dynamic Characteristics of Multithreaded Execution in the EM-X Multiprocessor (2007)
Hirofumi Sakane, Mitsuhisa Sato, Yuetsu Kodama, Hayato Yamana, Shuichi Sakai, Yoshinori Yamaguchi, ...
Multithreading is known be effective for tolerating communication latency in distributed-memory multiprocessors. Two types of support for multithreading have been used to date including software and...
Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, Primet, Pascale, ...
We consider the problem of huge data transfers and bandwidth sharing in contexts where transfer delay bounds are required. This report investigates large flow interactions in a real very high-speed...
Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, Primet, Pascale, ...
We consider the problem of huge data transfers and bandwidth sharing in contexts where transfer delay bounds are required. This report investigates large flow interactions in a real very high-speed...
Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, Primet, Pascale, ...
We consider the problem of huge data transfers and bandwidth sharing in contexts where transfer delay bounds are required. This report investigates large flow interactions in a real very high-speed...
Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, Primet, Pascale, ...
We consider the problem of huge data transfers and bandwidth sharing in contexts where transfer delay bounds are required. This report investigates large flow interactions in a real very high-speed...
Soudan, Sébastien, Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, ...
23 pages, figures, tableaux, graphiques, 11 références bibliographiques
Soudan, Sebastien, Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, ...
This paper examines the interactions between layer 2 (Ethernet) switches and TCP in high bandwidth delay product networks. First, the behavior of a range of Ethernet switches when two long lived...
Soudan, Sebastien, Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, ...
This paper examines the interactions between layer 2 (Ethernet) switches and TCP in high bandwidth delay product networks. First, the behavior of a range of Ethernet switches when two long lived...
Soudan, Sebastien, Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, ...
This paper examines the interactions between layer 2 (Ethernet) switches and TCP in high bandwidth delay product networks. First, the behavior of a range of Ethernet switches when two long lived...
Soudan, Sebastien, Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, ...
This paper examines the interactions between layer 2 (Ethernet) switches and TCP in high bandwidth delay product networks. First, the behavior of a range of Ethernet switches when two long lived...
Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, Primet, Pascale, ...
We consider the problem of huge data transfers and bandwidth sharing in contexts where transfer delay bounds are required. This report investigates large flow interactions in a real very high-speed...
Soudan, Sebastien, Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, ...
This paper examines the interactions between layer 2 (Ethernet) switches and TCP in high bandwidth delay product networks. First, the behavior of a range of Ethernet switches when two long lived...
Soudan, Sebastien, Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, ...
This paper examines the interactions between layer 2 (Ethernet) switches and TCP in high bandwidth delay product networks. First, the behavior of a range of Ethernet switches when two long lived...
Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, Primet, Pascale, ...
We consider the problem of huge data transfers and bandwidth sharing in contexts where transfer delay bounds are required. This report investigates large flow interactions in a real very high-speed...
Guillier, Romaric, Hablot, Ludovic, Kodama, Yuetsu, Kudoh, Tomohiro, Okazaki, Fumihiro, Primet, Pascale, ...
We consider the problem of huge data transfers and bandwidth sharing in contexts where transfer delay bounds are required. This report investigates large flow interactions in a real very high-speed...
Design and evaluation of precise software pacing mechanisms for fast long-distance networks (2005)
Ryousei Takano, Tomohiro Kudoh, Yuetsu Kodama, Motohiko Matsuda, Hiroshi Tezuka, Yutaka Ishikawa
Abstract — In this paper, we propose precise software pacing mechanisms at end nodes of communication paths. First, we propose an Inter Packet Gap (IPG) control mechanism, which inserts gap packets...
The Second Trans-Pacific Grid Datafarm Testbed and Experiments for SC2003 (2004)
Osamu Tatebe, Hirotaka Ogawa, Yuetsu Kodama, Tomohiro Kudoh, Satoshi Sekiguchi, Satoshi Matsuoka, ...
The Grid Datafarm architecture is designed for global petascale data-intensive computing. It provides a global parallel file system (Gfarm file system) with online petascale storage, scalable I/O...
Osamu Tatebe, Yuetsu Kodama, Satoshi Sekiguchi, Yoshinori Yamaguchi
MPI point-to-point communication is a basic operation, however it requires runtime-matching of send and receive that causes to reduce performance. This paper proposes a new approach to send messages...
Highly Efficient Implementation of (1998)
Osamu Tatebe, Yuetsu Kodama, Satoshi Sekiguchi, Yoshinori Yamaguchi
MPI point-to-point communication is a basic operation, however it requires runtime-matching of send and receive that causes to reduce performance. This paper proposes a new approach to send messages...
A Case Study of Optimizing Parallel Computation and Remote Memory Access (1994)
Yuetsu Kodama, Hirohumi Sakane, Mitsuhisa Sato, Shuichi Sakai, Yoshinori Yamaguchi, Electrotechnical Laboratory
this report, we are going to describe a case study of optimization in the design of a processing element for massively parallel computers by introducing the mechanism of remote memory access on EM-X.
Performance of Data-Parallel Primitives on the EM-4 Dataflow Parallel Supercomputer (1992)
Andrew Shaw, Yuetsu Kodama, Mitsuhisa Sato, Shuichi Sakai, Yoshinori Yamaguchi
We have implemented seven data-parallel primitives on the hybrid dataflow/von Neumann parallel computer EM-4. To evaluate the performance of these primitives, we compare them to identical primitives...