Sequoia is a petascale Blue Gene/Q supercomputer being constructed by IBM for the National Nuclear Security Administration as part of the Advanced Simulation and Computing Program (ASC). It was delivered to the Lawrence Livermore National Laboratory in 2011 and will be fully deployed in 2012.^[1]

When the plans for the IBM Sequoia were revealed in February 2009, the targeted performance of 20 petaflops was more than the combined performance of the top 500 supercomputers of the time. The 20 petaflops target will make Sequoia almost twice as fast as the current record-holding, 10.51 petaflops K computer and equal to the intended performance of the Cray Titan.

Dawn prototype[link]

IBM has also built a smaller prototype called "Dawn," capable of 500 teraflops, using the Blue Gene/P design, to evaluate the Sequoia design. This system was delivered in April 2009 and entered the Top500 list at 9th place in June 2009.^[2]

Purpose[link]

Sequoia will be used primarily for nuclear weapons simulation, replacing the current Blue Gene/L and ASC Purple supercomputers at Lawrence Livermore National Laboratory. Sequoia will also be available for scientific purposes like astronomy, energy, studying of the human genome, and climate change.

Design[link]

Node architecture[link]

Sequoia will be of Blue Gene/Q design, building off previous Blue Gene designs. It will consist of 98,304 compute nodes comprising 1.6 million processor cores and 1.6 PB memory in 96 racks covering an area of about 3,000 square feet (280 m²). The processors are to be 16- or 8-core Power Architecture processors built on a 45 nm fabrication process.

Job scheduler[link]

LLNL is going to use the SLURM job scheduler, which is also used by the Dawn prototype and China's Tianhe-IA, to manage Sequoia's resources.^[3]

Filesystem[link]

LLNL plans to deploy Lustre as the parallel filesystem, and has ported ZFS to Linux as the Lustre OSD (Object Storage Device) to take advantage of the performance and advanced features of the filesystem.^[4]

In Sept 2011, NetApp announced that DoE has selected the company for 55 PB of storage.^{[5] [6]}

Power usage[link]

The complete system will draw about 6 MW of power but is projected to have an unprecedented efficiency in performance per watt. The Sequoia design will perform 3000 Mflops/watt, about 7 times as efficient as the Blue Gene/P design it is replacing, and more than 3 times as efficient as the current (as of June 2011) Top 500 leader.^[7][8]

See also[link]

• Blue Gene
• IBM Roadrunner
• TOP500
• SLURM

References[link]

External links[link]

• NNSA awards IBM contract to build next generation supercomputer
• 20 Petaflop Sequoia Supercomputer
• Using the Dawn BG/P System

John Lutz (born 1939) is an American writer who mainly writes mystery novels. He has received an Edgar Award and the Shamus Award twice, and his novel Single White Female was the basis for the 1992 film starring Bridget Fonda.^[1][2][3][4] John Lutz also writes stories for jigsaw puzzles.^[5]

Bibliography[link]

Series[link]

Alo Nudger[link]

1. Buyer Beware (1976)
2. Night Lines (1984)
3. The Right to Sing the Blues (1986)
4. Ride the Lightning (1987)
5. Dancer's Debt (1988)
6. Time Exposure (1989)
7. Diamond Eyes (1990)
8. Thicker Than Blood (1993)
9. Death by Jury (1995)
10. Oops! (1998)
11. The Nudger Dilemmas (2001)

Fred Carver[link]

1. Tropical Heat (1986) (Nominated for the 1987 Anthony Award for Best Novel)^[6]
2. Scorcher (1987)
3. Kiss (1988)
4. Flame (1990)
5. Bloodfire (1991)
6. Hot (1992)
7. Spark (1993)
8. Torch (1994)
9. Burn (1995)
10. Lightning (1996)

Night[link]

1. The Night Caller (2001)
2. The Night Watcher (2002) - Finalist 2003 Edgar Award for Best Paperback Original
3. The Night Spider (2003)/ republished as Night Victims (2009)
4. Fear The Night (2005)
5. Chill Of Night (2006)

Frank Quinn[link]

1. Darker Than Night (2004)
2. In For The Kill (2007)
3. Night Kills (2008)
4. Urge To Kill (2009)
5. Mister X (2010)
6. Serial (2011)

Standalone Novels[link]

• The Truth of the Matter (1971)
• Bonegrinder (1977)
• Lazarus Man (1979)
• Jericho Man (1980)
• The Shadow Man (1981)
• Exiled (1982) (with Steven Greene)
• The Eye (1984)
• Shadowtown (1988)
• Single White Female (1990; original title: SWF Seeks Same; see also movie page Single White Female)
• Dancing with the Dead (1992)
• The Ex (1996) (adapted into a film — see The Ex (1997 film))
• Final Seconds (1998) (with David August)

Short stories[link]

A[link]

• "Abridged", Mike Shayne's Mystery Magazine, August 1983.
• "After the Ball", Dracula: Prince of Darkness, 1994.
• "All Business", Ellery Queen's Prime Crimes 2, 1984.
• "All of a Sudden", Alfred Hitchcock's Mystery Magazine, August 1974.
• "Animal Wrongs", Thirteen Doors Vl (audio), Buckingham Classics Ltd., 199?.
• "Arful", Show Business is Murder, 2004.
• "Arm of the Law", Alfred Hitchcock’s Mystery Magazine, October 1974.
• "Autumn Madness", Ellery Queen's Mystery Magazine, November 1972.

B[link]

• "The Basement Room", Mike Shayne’s Mystery Magazine, October 1973.
• "The Bear Cottage", Mike Shayne’s Mystery Magazine, July 1981.
• "Before You Leap", Deadly Allies, 1992.
• "Big Game", Signature, August 1967.
• "Bingo", The Mysterious West, 1994.
• "Booth Thirteen", Galaxy, 1968.
• "Buried Treasure", Alfred Hitchcock’s Mystery Magazine, August 1982.
• "Burglary in Progress", Woman's World, Issue #37, 1986.
• "Burning Evidence", bePuzzled (story-puzzle), 1993.
• "But Once a Year", Cat Crimes Goes on Holiday, 1997.

C[link]

• "The Clarion Call", Mike Shayne’s Mystery Magazine, July 1975.
• "Close Calls", Alfred Hitchcock’s Mystery Magazine, November 1978.
• "A Crazy Business", Feline and Famous, 1994.
• "The Creator of Spud Moran", Alfred Hitchcock’s Mystery Magazine, July 1968.
• "The Crooked Picture", The Man From UNCLE Mystery Magazine, November 1967.
• "Curb Service", 87th Precinct Mystery Magazine, 1974.

D[link]

• "Dangerous Game", Alfred Hitchcock’s Mystery Magazine, February 1979.
• "Day of Evil" (published under the pseudonym John Bennett), The Executioner Mystery Magazine, June 1975.
• "The Day of the Picnic", Alfred Hitchcock’s Mystery Magazine, October 1971.
• "Day Shift", Mike Shayne’s Mystery Magazine, June 1974.
• "Dead Man", Alfred Hitchcock’s Mystery Magazine, March 1974.
• "Dead, You Know", Alfred Hitchcock’s Mystery Magazine, January 1968.
• "Dear Dorie", Alfred Hitchcock’s Mystery Magazine, September 1981.
• "Death by the Numbers", Mike Shayne’s Mystery Magazine, December 1977.
• "Death for Sale", Swank, 1971.
• "Death on the Silver Screen", Mike Shayne’s Mystery Magazine, April 1968.
• "DDS 10752 Libra" (written with Josh Pachter), An Eye for Justice, 1988.
• "Deeper and Deeper", Ellery Queen's Mystery Magazine, September 1982.
• "Dilemma", Unholy Orders, 2000.
• "Discount Fare", Alfred Hitchcock’s Mystery Magazine, April 1979.
• "DNA", (audio), For Crime Out Loud, 1997.
• "Dogs and Fleas", Guilty as Charged, 1996.
• "Doom Signal", Alfred Hitchcock’s Mystery Magazine, November 1969.
• "Double Cross", bePuzzled (story-puzzle), 1989.
• "Double Murder", Alfred Hitchcock’s Mystery Magazine, January 1981.

E[link]

• "El Palacio", A Hot and Sultry Night, 2003.
• "Endless Road", Murder on Route 66, 1998.
• "Explosive Cargo", Alfred Hitchcock’s Mystery Magazine, October 1977.
• "The Explosives Expert", Alfred Hitchcock’s Mystery Magazine, September 1967.

F[link]

• "Fair Shake", Alfred Hitchcock’s Mystery Magazine, April 1968.
• "Feline Frenzy", bePuzzled (story-puzzle), 1991.
• "Figure in Flight", Charlie Chan Mystery Magazine, February 1974.
• "The Final Reel", Alfred Hitchcock’s Mystery Magazine, May 1971.
• "Finicky", Cat Crimes, 1991.
• "Flotsam and Jetsam", New Black Mask #8, 1987.
• "Flowers from a Stranger", bePuzzled (story-puzzle), May 1994.
• "Fractions", Alfred Hitchcock’s Mystery Magazine, June 1972.
• "Franticman", Alfred Hitchcock’s Mystery Magazine, October 1979.
• "Friendly Hal", Alfred Hitchcock’s Mystery Magazine, November 1971.

G[link]

• "Games for Adults", Alfred Hitchcock’s Mystery Magazine, December 1971.
• "Garden of Dreams", Alfred Hitchcock’s Mystery Magazine, June 1971.
• "The Gentleman on the Titanic", Ellery Queen's Mystery Magazine, November 1999.
• "A Glimpse of Evil", Alfred Hitchcock’s Mystery Magazine, March 1980.
• "Going, Going…", The Executioner Mystery Magazine, April 1975.
• "Green Death", Alfred Hitchcock’s Mystery Magazine, May 1974.
• "Grounds for Murder", bePuzzled (story-puzzle), February 1995.

H[link]

• "Hand of Fate", Alfred Hitchcock’s Mystery Magazine, July 1969.
• "A Handgun for Protection", Mike Shayne Mystery Magazine, September 1984.
• "Hanson’s Radio", Dark Love, 1995.
• "Have You Ever Seen this Woman?", Alfred Hitchcock’s Mystery Magazine, August 1976.
• "Heat", Ellery Queen's Mystery Magazine, September 1985.
• "Hector Gomez Provides", Mike Shayne’s Mystery Magazine, August 1985.
• "High Stakes", The Saint Mystery Magazine, June 1984.
• "His Honor the Mayor", The Executioner Mystery Magazine, August 1975.
• "Hobson’s Choice", The Blue and the Gray Undercover, 2002.

I[link]

• "Image", Diagnosis Dead, 1999.
• "In the Blood", Cavalier, 1972.
• "In by the Tenth", Ellery Queen's Mystery Magazine, 1978.
• "In Memory of…", Alfred Hitchcock’s Mystery Magazine, January 1972.
• "The Infernal Machine", The New Adventures of Sherlock Holmes, 1987.
• "The Insomniacs’ Club", Ellery Queen's Mystery Magazine, September 1968.
• "It Could Happen to You", Alfred Hitchcock’s Mystery Magazine, March 1975.

J[link]

• "Jelly Reds", Deals with the Devil, 1993.

K[link]

• "A Killer Foiled", Mike Shayne’s Mystery Magazine, November 1972.
• "King of the Kennel", Mike Shayne’s Mystery Magazine, November 1968.
• "King of the World", Alfred Hitchcock’s Mystery Magazine, 1973.
• "Kitty", Cat Crimes III, 1992.

L[link]

• "The Landscape of Dreams", Ellery Queen's Mystery Magazine, March 1982.
• "The Last to Know", Mike Shayne’s Mystery Magazine, June 1985.
• "The Laundry Room", Manhattan Noir, 2006.
• "Lease on Life", 87th Precinct Mystery Magazine, June 1975.
• "The Ledge Walker", The Executioner Mystery Magazine, June 1975.
• "The Lemon Drink Queen", Alfred Hitchcock’s Mystery Magazine, February 1974.
• "Life Sentence", 87th Precinct Mystery Magazine, August 1975.
• Lily and Men, Flesh and Blood, Dark Desires, 2002.
• "The Litigants", The Shamus Game, 2000.
• "The Live Tree", Mistletoe Mysteries, 1989.
• "Living all Alone", Alfred Hitchcock’s Mystery Magazine, May 1972.

M[link]

• "Mr. Lucrada", The Ultimate Dracula, 1991.
• "Machete", Mystery in the Sunshine State, 1999.
• "Mail Order", Alfred Hitchcock’s Mystery Magazine, April 1975.
• "The Man in the Morgue", Alfred Hitchcock’s Mystery Magazine, February 1978.
• "Marked Down", Alfred Hitchcock’s Mystery Magazine, July 1978.
• "Men with Motives", 87th Precinct Mystery Magazine, August 1975.
• "The Midnight Train", Alfred Hitchcock’s Mystery Magazine, March 1968.
• "Missing Personnel", Alfred Hitchcock’s Mystery Magazine, June 1977.
• "Moon Children", 87th Precinct Mystery Magazine, May 1975.
• "Mortal Combat, January", Alfred Hitchcock’s Mystery Magazine, 1981.
• "Murder Malignant", Alfred Hitchcock’s Mystery Magazine, August 1971.
• "Murder on the Titanic", bePuzzled (story-puzzle), 1997.
• "The Music from Downstairs", Alfred Hitchcock’s Mystery Magazine, March 1979.

N[link]

• "Next to the Woman from Des Moines" (published under the pseudonym Paul Shepptarton), The Executioner Mystery Magazine, June 1975.
• "Night Chase", New Mystery, May 1992.
• Night Crawlers, For Crime Out Loud, (audio), 1996. Ellery Queen's Mystery Magazine, April 1997.
• "Nighthawks", Guilty as Sin, 2003.
• "No Small Problem", Alfred Hitchcock’s Mystery Magazine, September,1968.
• "Not a Home", Alfred Hitchcock’s Mystery Magazine, September 1976.
• "Not Just a Number", Mike Shayne’s Mystery Magazine, July 1976.

O[link]

• "Obedience School", Mike Shayne’s Mystery Magazine, 1969.
• "Objective Mirror", Alfred Hitchcock’s Mystery Magazine, July 1973.
• "Old Saying", Dick Tracy—the Secret Files, 1990.
• "On Guard", Mystery Scene, September 1986.
• "On Judgment Day", Espionage, August 1985.
• "One for All", Knight.
• "One Man’s Manual", Alfred Hitchcock’s Mystery Magazine, March 1977.
• "One Way", Alfred Hitchcock’s Mystery Magazine, March 1969.
• "Only One Way to Land", Alfred Hitchcock’s Mystery Magazine, October 1983.
• "Open and Shut", Invitation to Murder, 1991.
• "The Organization Man", The Executioner Mystery Magazine, June 1975.
• "The Other Runner", Ellery Queen's Mystery Magazine, October 1978.
• "The Other Side of Reason", Mike Shayne’s Mystery Magazine, December 1974.

P[link]

• "Past Perfect", Alfred Hitchcock’s Mystery Magazine, December 1978.
• "Personalized Copy" (published under the pseudonym Elwin Strange), 87th Precinct Mystery Magazine, June 1975.
• "Plague", Celebrity Vampires, 1995.
• "Political Decision", First Lady Murders, 1999.
• "The President’s Cat is Missing", Danger in D. C., 1993.
• "A Private, Restful Place", Mike Shayne’s Mystery Magazine, May 1974.
• "Prospectus on Death", Alfred Hitchcock’s Mystery Magazine, July 1971.
• "Pure Rotten", Mike Shayne’s Mystery Magazine, August 1977.

Q[link]

• "Quid, Pro Quo", Ellery Queen's Mystery Magazine, August 1967.

R[link]

• "A Rare Bird", Alfred Hitchcock’s Mystery Magazine, August 1967.
• "The Real Shape of the Coast", Ellery Queen's Mystery Magazine, June 1971.
• "Rest Assured", Mike Shayne’s Mystery Magazine, February 1975.
• "The Return of D. B. Cooper", Mike Shayne’s Mystery Magazine, December 1982.
• "Ride the Lightning", Alfred Hitchcock’s Mystery Magazine, January 1985. (Nominated for the 1986 Anthony Award for Best Short Story)^[6]
• "The Right to Sing the Blues", Alfred Hitchcock’s Mystery Magazine, May 1983.
• "The Romantics", Deadly Allies II, 1994.
• "Room 33" (published under the pseudonym Van McCloud), The Executioner Mystery Magazine, June 1975.

S[link]

• "The Second Shot", Ellery Queen's Mystery Magazine, September 1984.
• "Second Story Sunlight", Most Wanted, 2002.
• "Severance Pay", Alfred Hitchcock’s Mystery Magazine, 1977.
• "Shadows Everywhere", Alfred Hitchcock’s Mystery Magazine, June 1973.
• "Shell Game", Vampire Detectives, 1995.
• "Shock", Unusual Suspects, 1996.
• "The Shooting of Curly Dan", Ellery Queen's Mystery Magazine, August 1973.
• "Short Shrift", Woman’s World, 10/26, 1986.
• "Slay Belle", Santa Clues, 1993.
• "A Slight Oversight" (published under the pseudonym Edwin Hicks), The Executioner Mystery Magazine, June 1975.
• "Sneak Pitch", Special Report, November 1988.
• "So Young, so Fair, so Dead", Mike Shayne’s Mystery Magazine, March 1973.
• "Someone Else", Justice for Hire, 1990.
• "Something for the Dark", Alfred Hitchcock’s Mystery Magazine, November 1977.
• "Something Like Murder", Ellery Queen's Mystery Magazine, January 1978.
• "S.O.S.", Death Cruise, 1999.
• "Split Personalities", Mike Shayne’s Mystery Magazine, February 1984.
• "Sporting Blood", Swank, 1968.
• "Star Bright", Raymond Chandler’s Philip Marlowe, 1988.
• "Stutter Step", Irreconcilable Differences, 1999.
• "Swan Song", Once Upon a Crime, 1998.

T[link]

• "Tango was her life", Death Dance, 2002.
• "Taxed to Death", bePuzzled (story-puzzle), 1996.
• "That Kind of World", Alfred Hitchcock’s Mystery Magazine, July 1980.
• "Theft is My Profession", Alfred Hitchcock’s Mystery Magazine, September 1971.
• "Thieves’ Honor", Alfred Hitchcock’s Mystery Magazine, December 1966.
• "The Thunder of Guilt", Mean Streets, 1986.
• "Tiger, Tiger" (written with Bill Pronzini), Mystery, September 1981.
• "Time Exposure", Alfred Hitchcock’s Mystery Magazine, June 1982.
• "Toad Crossing" (written with David August), Alfred Hitchcock’s Mystery Magazine, July 1996.
• "Tough", Mike Shayne’s Mystery Magazine, November 1980.
• "Traveling Alone" (written with Barbara Lutz), Till Death do us Part, 1999.
• "Trickle Down", Alfred Hitchcock’s Mystery Magazine, October 1985.
• "Twice Removed", Espionage, February 1985.
• "Two by Two", Alfred Hitchcock’s Mystery Magazine, November 1970.
• "Typographical Error", The Eyes Have it, 1984.

U[link]

• "Undercover Cat", bePuzzled (story-puzzle), 1996.
• "Understanding Electricity", Alfred Hitchcock’s Mystery Magazine, August 1975.
• "Until You are Dead", Alfred Hitchcock’s Mystery Magazine, January 1980.

V[link]

• "A Verdict of Death", Charlie Chan Mystery Magazine, May 1974.
• "The Very Best", Alfred Hitchcock’s Mystery Magazine, March 1972.
• "Veterans", Murder Most Confederate, 2000.

W[link]

• "Where Is, As Is", Alfred Hitchcock’s Mystery Magazine, April 1978.
• "Where is Harry Beal?", Alfred Hitchcock’s Mystery Magazine, August 1979.
• "Winds of Change", Espionage, December 1984.
• "Within the Law", Alfred Hitchcock’s Mystery Magazine, April 1972.
• "Wonder World", Alfred Hitchcock’s Mystery Magazine, January 1976.
• "The Wounded Tiger", Signature, November 1967.
• "W. O. W.", The Executioner Mystery Magazine, 1974.
• "Wriggle", Creature, 1981.
• "Web Site", Compulsion, 2000.
• "What You Don’t Know Can Hurt You", Alfred Hitchcock’s Mystery Magazine, November 1982.
• "With Anchovies", Murder is my Business, 1994.
• "White Mustangs", Solved, 1991.

Y[link]

• "You Belong to Me", Homicide Hosts Presents, 1996.
• "You and the Music", Alfred Hitchcock’s Mystery Magazine, June 1975.

Articles[link]

• Beyond Good and Evil, The Writer, December 1994.
• Breaking the Rules, The Writer, June 1991.
• Criminal Viewpoint, The Oxford Companion to Crime and Mystery Writing, 1999.
• How to Generate Suspense in Fiction, The Writer, June 1999.
• If You Haven’t a Clue, Basics of Writing and Selling Mystery and Suspense, 1991.
• In the Beginning is the End, Writing Mysteries, 1992.
• The Long and Short of It, The Writer, December 1987.
• Not Quite Dead Enough, (introduction), Rex Stout Reprints, 1992.
• Nothing Old Under the Sun, The Writer, July 1980.
• Setting for Suspense, The Writer, July 1974.
• The Sight of Music, Mystery Readers Journal, 1990.
• Short and Shamus, Writing the Private Eye Novel, 1997.
• Two Timers, Mystery Scene #41, 1994.
• Using Technology in Mysteries, The Writer, July 1978.

Collections[link]

• Better Mousetraps (1988)
• Shadows Everywhere (1994)
• Until You Are Dead (1998)
• Endless Road: And Other Stories (2003)

Anthologies Containing Short Stories[link]

• Coffin Corner (edited by Alfred Hitchcock) (1968)
• Coffin Break (edited by Alfred Hitchcock) (1974)
• Alfred Hitchcock's Tales To Be Read With Caution (edited by Eleanor Sullivan) (1979)
• The Giant Book of Horror Stories (edited by Martin H. Greenberg, Barry N. Malzberg and Bill Pronzini) (1981)
• Great Tales of Mystery and Suspense (edited by Martin H. Greenberg, Barry N. Malzberg and Bill Pronzini) (1981)
• Top Fantasy (edited by Josh Pachter) (1984)
• Alfred Hitchcock's Crime-Watch (edited by Cathleen Jordan)
• Alfred Hitchcock's Book of Horror Stories, Book 5 (edited by Alfred Hitchcock and Eleanor Sullivan) (1986)
• Deals with the Devil (edited by Loren D. Estleman, Martin H. Greenberg and Mike Resnick) (1994)
• Celebrity Vampires (edited by Martin H. Greenberg) (1995)
• Dark Love (edited by Nancy A. Collins,Martin H. Greenberg and Edward E. Kramer) (1995)
• Vampire Detectives (edited by Martin H. Greenberg) (1995)

^[7]

References[link]

External links[link]

• Official website