公开(公告)号：EP1381963A4

公开(公告)日：2008-02-13

申请号：EP02707876

申请日：2002-02-25

Applicant: IBM

Inventor： BHANOT GYAN V ,  BLUMRICH MATTHIAS A ,  CHEN DONG ,  GARA ALAN G ,  GIAMPAPA MARK E ,  HEIDELBERGER PHILIP ,  STEINMACHER-BUROW BURKHARD D ,  VRANAS PAVLOS M

IPC: G06F11/10 ,  G06F9/46 ,  G06F9/52 ,  G06F11/00 ,  G06F11/20 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F13/00 ,  G06F13/24 ,  G06F13/38 ,  G06F15/173 ,  G06F15/177 ,  G06F15/80 ,  G06F17/14 ,  H04L1/00 ,  H04L7/02 ,  H04L7/033 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H05K7/20

CPC classification number: H05K7/20836 ,  F24F11/77 ,  G06F9/52 ,  G06F9/526 ,  G06F15/17381 ,  G06F17/142 ,  G09G5/008 ,  H04L7/0338 ,  Y02B30/746

Abstract: A fan module including: two or more individual fans, each fan having an air movement means and a motor engaged with the air movement means for accelerating air entering each of the two or more individual fans; a temperature sensor for sensing a temperature associated with the two or more fans and for outputting a first signal corresponding to the temperature; rotational speed sensor for outputting a second signal corresponding to a rotational speed of each of the two or more fans; and a processor for receiving the first and second signals and controlling the two or more individual fans based on the first and second signals.

公开(公告)号：EP1497750A4

公开(公告)日：2011-03-09

申请号：EP02721139

申请日：2002-02-25

Applicant: IBM

Inventor： BHANOT GYAN V ,  CHEN DONG ,  GARA ALAN G ,  GIAMPAPA MARK E ,  HEIDELBERGER PHILIP ,  STEINMACHER-BOROW BURKHARD D ,  VRANAS PAVLOS M

IPC: G06F11/10 ,  G06F9/46 ,  G06F9/52 ,  G06F11/00 ,  G06F11/20 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F13/00 ,  G06F13/24 ,  G06F13/38 ,  G06F15/173 ,  G06F15/177 ,  G06F15/80 ,  G06F17/14 ,  H04L1/00 ,  H04L7/02 ,  H04L7/033 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H05K7/20

CPC classification number: H05K7/20836 ,  F24F11/77 ,  G06F9/52 ,  G06F9/526 ,  G06F15/17381 ,  G06F17/142 ,  G09G5/008 ,  H04L7/0338 ,  Y02B30/746

Abstract: A fan module including: two or more individual fans, each fan having an air movement means and a motor engaged with the air movement means for accelerating air entering each of the two or more individual fans; a temperature sensor for sensing a temperature associated with the two or more fans and for outputting a first signal corresponding to the temperature; rotational speed sensor for outputting a second signal corresponding to a rotational speed of each of the two or more fans; and a processor for receiving the first and second signals and controlling the two or more individual fans based on the first and second signals.

公开(公告)号：EP1374468A4

公开(公告)日：2008-12-10

申请号：EP02709667

申请日：2002-02-25

Applicant: IBM

Inventor： BHANOT GYAN V ,  BLUMRICH MATTHIAS A ,  CHEN DONG ,  COTEUS PAUL W ,  GARA ALAN G ,  GIAMPAPA MARK E ,  HEIDELBERGER PHILIP ,  STEINMACHER-BUROW BURKHARD D ,  TAKKEN TODD E ,  VRANAS PAVLOS M

IPC: G06F11/10 ,  G06F9/46 ,  G06F9/52 ,  G06F11/00 ,  G06F11/20 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F13/00 ,  G06F13/24 ,  G06F13/38 ,  G06F15/173 ,  G06F15/177 ,  G06F15/80 ,  G06F17/14 ,  H04L1/00 ,  H04L7/02 ,  H04L7/033 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H05K7/20 ,  H04L1/18 ,  H04J3/02

CPC classification number: H05K7/20836 ,  F24F11/77 ,  G06F9/52 ,  G06F9/526 ,  G06F15/17381 ,  G06F17/142 ,  G09G5/008 ,  H04L7/0338 ,  Y02B30/746

Abstract: A fan module including: two or more individual fans, each fan having an air movement means and a motor engaged with the air movement means for accelerating air entering each of the two or more individual fans; a temperature sensor for sensing a temperature associated with the two or more fans and for outputting a first signal corresponding to the temperature; rotational speed sensor for outputting a second signal corresponding to a rotational speed of each of the two or more fans; and a processor for receiving the first and second signals and controlling the two or more individual fans based on the first and second signals.

公开(公告)号：CA2437036A1

公开(公告)日：2002-09-06

申请号：CA2437036

申请日：2002-02-25

Applicant: IBM

Inventor： VRANAS PAVLOS M ,  STEINMACHER-BUROW BURKHARD D ,  GARA ALAN G ,  CHEN DONG ,  BHANOT GYAN V ,  HEIDELBERGER PHILIP ,  GIAMPAPA MARK E

IPC: G06F11/10 ,  G06F9/46 ,  G06F9/52 ,  G06F11/00 ,  G06F11/20 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F13/00 ,  G06F13/24 ,  G06F13/38 ,  G06F15/173 ,  G06F15/177 ,  G06F15/80 ,  G06F17/14 ,  H04L1/00 ,  H04L7/02 ,  H04L7/033 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H05K7/20

Abstract: The present invention is directed to a method, system and program storage device for efficiently implementing a multidimensional Fast Fourier Transfor m (FFT) of a multidimensional array comprising a plurality of elements initial ly distributed in a multi-node computer system(100) comprising a plurality of nodes(Q11-Q33) in communication over a network, comprising distributing the plurali ty of elements of the array in a first dimension across the pluralit y of nodes of the computer system over the network to facilitate a first one- dimensional FFT; performing the first one-dimensional FFT on the elements of the array distributed at each node in the first dimension; re-distributing t he one-dimensional FFT-transformed elements at each node in a second dimension via "all-to-all" distribution in random order across other nodes of the computer system over the network; and performing a second one-dimensional FF T on elements of the array re-distributed at each node in the second dimension , wherein the random order facilitated efficient utilization of the network thereby efficiently implementing the multidimensional FFT. The "all-to-all" re- distribution of the array elements is further efficiently implemented in applications other that the multidimensional FFT on the distributed-memory parallel supercomputer.

公开(公告)号：CA2436413A1

公开(公告)日：2002-09-06

申请号：CA2436413

申请日：2002-02-25

Applicant: IBM

Inventor： CHEN DONG ,  COTEUS PAUL W ,  HEIDELBERGER PHILIP ,  GARA ALAN G ,  GIAMPAPA MARK E ,  BLUMRICH MATTHIAS A ,  BHANOT GYAN V ,  TAKKEN TODD E ,  VRANAS PAVLOS M ,  STEINMACHER-BUROW BURKHARD D

IPC: G06F11/10 ,  G06F9/46 ,  G06F9/52 ,  G06F11/00 ,  G06F11/20 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F13/00 ,  G06F13/24 ,  G06F13/38 ,  G06F15/173 ,  G06F15/177 ,  G06F15/80 ,  G06F17/14 ,  H04L1/00 ,  H04L7/02 ,  H04L7/033 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H05K7/20 ,  H04L1/18 ,  H04J3/02

Abstract: Class network routing is emplemented in a network such as a computer network comprising a plurality of parallel compute processors at nodes (Q00-Q22) thereof. Class network routing allows a compute processor to broadcast a message to a range (one or more) of other compute processors in the computer network, such as processors in a column or a row. Normally this type of operation requires a separate message to be sent to each processor. With cla ss network routing pursuant to the invention, a single message is sufficient, which generally reduces the total number of messages in the network as well as the latency to do a broadcast. Class network routing is also applied to dens e matrix inversion algorithms on distributed memory parallel supercomputers (Fig. 1) with hardware class function (multicast) capability. This is achiev ed by exploiting the fact that the communication patterns of dense matrix inversion can be served by hardware classe functions, which results in faste r execution times.

公开(公告)号：CA2436413C

公开(公告)日：2011-09-27

申请号：CA2436413

申请日：2002-02-25

Applicant: IBM

Inventor： BHANOT GYAN V ,  BLUMRICH MATTHIAS A ,  CHEN DONG ,  COTEUS PAUL W ,  GARA ALAN G ,  GIAMPAPA MARK E ,  HEIDELBERGER PHILIP ,  STEINMACHER-BUROW BURKHARD D ,  TAKKEN TODD E ,  VRANAS PAVLOS M

IPC: G06F11/10 ,  H04L1/18 ,  G06F9/46 ,  G06F9/52 ,  G06F11/00 ,  G06F11/20 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F13/00 ,  G06F13/24 ,  G06F13/38 ,  G06F15/173 ,  G06F15/177 ,  G06F15/80 ,  G06F17/14 ,  H04J3/02 ,  H04L1/00 ,  H04L7/02 ,  H04L7/033 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H05K7/20

Abstract: Class network routing is implemented in a network such as a computer network comprising a plurality of parallel compute processors at nodes thereof. Class network routing allows a compute processor to broadcast a message to a range (one or more) of other compute processors in the computer network, such as processors in a column or a row. Normally this type of operation requires a separate message to be sent to each processor. With class network routing pursuant to the invention, a single message is sufficient, which generally reduces the total number of messages in the network as well as the latency to do a broadcast, Class network routing is also applied to dense matrix inversion algorithms on distributed memory parallel supercomputers with hardware class function (multicast) capability. This is achieved by exploiting the fact that the communication patterns of dense matrix inversion can be served by hardware class functions, which results in faster execution times.

公开(公告)号：CA2437629A1

公开(公告)日：2002-09-06

申请号：CA2437629

申请日：2002-02-25

Applicant: IBM

Inventor： VRANAS PAVLOS M ,  CHEN DONG ,  BLUMRICH MATTHIAS A ,  BHANOT GYAN V ,  STEINMACHER-BUROW BURKHARD D ,  HEIDELBERGER PHILIP ,  GIAMPAPA MARK E ,  GARA ALAN G

IPC: G06F11/10 ,  G06F9/46 ,  G06F9/52 ,  G06F11/00 ,  G06F11/20 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F13/00 ,  G06F13/24 ,  G06F13/38 ,  G06F15/173 ,  G06F15/177 ,  G06F15/80 ,  G06F17/14 ,  H04L1/00 ,  H04L7/02 ,  H04L7/033 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H05K7/20

Abstract: Methods and systems for performing arithmetic functions. In accordance with a first aspect of the invention, methods and apparatus are provided, working i n conjunction of software algorithms and hardware implementation of class network routing, to achieve a very significant reduction in the time require d for global arithmetic operation on the torus. Therefore, it leads to greater scalability of applications running on large parallel machines. The inventio n involves three steps in improving the efficiency and accuracy of global operations: (1) Ensuring, when necessary, that all the nodes do the global operation on the data in the same order and so obtain a unique answer, independent of roundoff error; (2) Using the topology of the torus to minimi ze the number of hops and the bidirectional capabilities of the network to redu ce the number of time steps in the data transfer operation to an absolute minimum; and (3) Using class function routing to reduce latency in the data transfer. With the method of this invention, every single element is injecte d into the network only once and it will be stored and forwarded without any further software overhead. In accordance with a second aspect of the invention, methods and systems are provided to efficiently implement global arithmetic operations on a network that supports the global combining operations. The latency of doing such global operations are greatly reduced by using these methods (Figure 4, node0, node1, node2, node3).