Nuclear Physics with Lattice QCD



   Computational Resources of NPLQCD

Our numerical investigations are supported by SciDAC, and are performed on the high-performance computing system at Jefferson Laboratory, FermiLab, the Mare Nostrum facility in Spain and Tungsten (Teragrid) . 
Essentially all of the computer time has been spent generating Domain-Wall propagators on the available MILC lattices.
SU = 4g = processor-hours
  Computational facility/Machine 
   Allocation     (x 10^6)  
  Allocation period 
USQCD -- JLab
 0.4  SU
 April 2005 - July 1 2006
Mare Nostrum -- Spain
 (0.2 + 0.1)  CPUh
April 2006 - Sept 2006
USQCD -- FermiLab
 1.6  SU
 July 1 2006 - July 1 2007
Teragrid -- Tungsten
 0.5  SU
 Sept 1 2006 - March 31 2007
Mare Nostrum -- Spain (0.2 + 0.4)  CPUh Nov 2006 - May 2007
USQCD -- JLab
2.6  SU
 July 1 2007 - July 1 2008
USQCD --  FermiLab
 1.6  SU
 July 1 2007 - July 1 2008
USQCD -- INCITE xxx
 xxx
Teragrid -- Tungsten 2.0  SU March 31 2007 - March 31 2008


Lattice Resources Generated by NPLQCD

A `` tmin-tmax chop''  is defined to be enforcing Dirichlet boundary conditions at time-slices, tmin and tmax and discarding the times-slices outside of this interval (defined with periodic bc's at t=0).  The propagator source is always displaced by 10 time-slices from tmin.  This is the LHPC convention.

These are the QCD domain-wall propagators we have generated during the SciDAC allocation period April 2005-April 2006.

Lattice (Staggered) (Nf = 2 + 1 )
 Pion Mass (MeV)
Propagators  (Domain Wall)
MILC_2064f21b681m030m050
 ~ 590
(4/05-4/06 - JLab)
564 light quarks and 564 strange, 16-47 chop , lattices 30-3408, skip 6
MILC_2064f21b679m020m050b
~ 490
(4/05-4/06- JLab)
111 light quarks and 111 strange, 0-31 chop , lattices 18-1338 skip 12
111 light quarks and 111 strange, 32-63 chop , lattices 12-1332 skip 12
222 light quarks and 222 strange, 16-47 chop , lattices 12-1338 skip 6

(10/06-4/07- Tungsten)
242 light, strange, 4-35 chop, lattices 162-1614 skip 6.
242 light, strange, 12-43 chop, lattices 162-1614 skip 6.
242 light, strange, 20-51 chop, lattices 162-1614 skip 6.
242 light, strange, 28-59 chop, lattices 162-1614 skip 6.
242 light, strange, 36-03 chop, lattices 162-1614 skip 6.
242 light, strange, 44-11 chop, lattices 162-1614 skip 6.

(11/06-1/07- Mare Nostrum)
222 light, strange, 4-35 chop, lattices 12-1338 skip 6.
222 light, strange, 12-43 chop, lattices 12-1338 skip 6.
222 light, strange, 20-51 chop, lattices 12-1338 skip 6.
222 light, strange, 28-59 chop, lattices 12-1338 skip 6.
222 light, strange, 36-3 chop, lattices 12-1338 skip 6.
222 light, strange, 44-11 chop, lattices 12-1338 skip 6.
222 light, strange, 52-19 chop, lattices 12-1338 skip 6.
222 light, strange, 60-27 chop, lattices 12-1338 skip 6.
MILC_2064f21b679m020m050b ~ 490 (4/05-4/06- JLab)
132 light quarks and 132 strange, 0-31 chop , lattices 36-1608 skip 12
132 light quarks and 132 strange, 32-63 chop , lattices 42-1614 skip 12
264 light quarks and 264 strange, 16-47 chop , lattices 36-1614 skip 6

(11/06-1/07- Mare Nostrum)
263 light, strange, 52-19 chop, lattices 12-1338 skip 6.
263 light, strange, 60-27 chop, lattices 12-1338 skip 6.
MILC_2064f21b676m010m050b
 ~ 350
(4/05-4/06- JLab)
224 light quarks and 224 strange, 0-31 chop , lattices 24-2700 skip 12
224 light quarks and 224 strange, 32-63 chop , lattices 18-2694 skip 12

(10/06-4/07- Tungsten)
405 light , strange quarks , 8-39 chop , lattices 270-2700 skip 6
405 light , strange quarks , 24-55 chop , lattices 270-2700 skip 6
MILC_2064f21b676m010m050 ~ 350 (4/05-4/06- JLab)
105 light quarks and 105 strange, 0-31 chop , lattices 36-1284 skip 12
105 light quarks and 105 strange, 32-63 chop , lattices 30-1278 skip 12

(10/06-4/07- Tungsten)
192 light , strange quarks , 8-39 chop , lattices 132-1284 skip 6
192 light , strange quarks , 24-55 chop , lattices 132-1284 skip 6
MILC_2064f21b676m007m050b
 ~ 290
(4/07-4/06- JLab)
51 light quarks and 51 strange, 0-31 chop , lattices 18-606 skip 12
50 light quarks and 50 strange, 32-63 chop , lattices 12-612 skip 12

(4/06-9/06- Mare Nostrum)
101 light, strange, 8-39 chop, lattices 12-612 skip 6.
MILC_2064f21b676m007m050 ~ 290 (4/05-4/06- JLab)
184 light quarks and 184 strange, 0-31 chop , lattices 36-2220 skip 12
184 light quarks and 184 strange, 32-63 chop , lattices 30-2226 skip 12

(4/06-9/06- Mare Nostrum)
367 light, strange, 8-39 chop, lattices 30-2226 skip 6.

(2/07-5/07- Mare Nostrum)
348 light, strange, 44-11 chop, lattices 30-2112 skip 6.
348 light, strange, 52-19 chop, lattices 30-2112 skip 6.

(-Infinity-5/07- MCR and Zeus at Livermore)
348 light, strange, 0-31 chop, lattices 30-2112 skip 6.
348 light, strange, 4-35 chop, lattices 30-2112 skip 6.






Partially-Quenched  domain-wall propagators have been generated.

Lattice (Staggered) (Nf = 2 + 1 )
 propagator quark mass
 Propagators  (Domain Wall)
MILC_2064f21b676m007m050

Msea = 0.0081 (== 0.007)
(QCD pion mass of ~ 290 MeV)
 Mval = 0.010
( QCD pion mass ~ 315 MeV)
(4/07-4/06)
367 light quarks, 0-31 chop , lattices 30-2226, skip 6
367 light quarks, 32-63 chop , lattices 30-2226, skip 6

(4/06-9/06- Mare Nostrum)
367 light, strange, 8-39 chop, lattices 30-2226 skip 6.

(2/07-5/07- Mare Nostrum)
348 light, strange, 44-11 chop, lattices 30-2112 skip 6.
348 light, strange, 52-19 chop, lattices 30-2112 skip 6.
MILC_2064f21b676m007m050

Msea = 0.0081 (== 0.007)
(QCD pion mass of ~ 290 MeV)

 Mval = 0.0138
( QCD pion mass ~ 350 MeV) 		(4/07-4/06)
367 light quarks, 0-31 chop , lattices 30-2226, skip 6
367 light quarks, 32-63 chop , lattices 30-2226, skip 6

(4/06-9/06- Mare Nostrum)
367 light, strange, 8-39 chop, lattices 30-2226 skip 6.

(2/07-5/07- Mare Nostrum)
348 light, strange, 44-11 chop, lattices 30-2112 skip 6.
348 light, strange, 52-19 chop, lattices 30-2112 skip 6.
MILC_2064f21b676m007m050b

Msea = 0.0081 (== 0.007)
(QCD pion mass of ~ 290 MeV)		 Mval = 0.010
( QCD pion mass ~ 315 MeV) 		4/06-9/06- Mare Nostrum)
101 light, strange, 8-39 chop, lattices 12-612 skip 6.
MILC_2064f21b676m007m050b

Msea = 0.0081 (== 0.007)
(QCD pion mass of ~ 290 MeV)
 Mval = 0.0138
( QCD pion mass ~ 350 MeV) 		4/06-9/06- Mare Nostrum)
101 light, strange, 8-39 chop, lattices 12-612 skip 6.
MILC_2064f21b676m010m050 Mval = 0.0081
( QCD pion mass ~ 290 MeV) 		(10/06-4/07- Tungsten)
192 light , strange quarks , 8-39 chop , lattices 132-1284 skip 6
192 light , strange quarks , 24-55 chop , lattices 132-1284 skip 6
MILC_2064f21b676m010m050 Mval = 0.010
( QCD pion mass ~ 315 MeV)		 (10/06-4/07- Tungsten)
192 light , strange quarks , 8-39 chop , lattices 132-1284 skip 6
192 light , strange quarks , 24-55 chop , lattices 132-1284 skip 6
MILC_2064f21b676m010m050b Mval = 0.0081
( QCD pion mass ~ 290 MeV)		 (10/06-4/07- Tungsten)
405 light , strange quarks , 8-39 chop , lattices 270-2700 skip 6
405 light , strange quarks , 24-55 chop , lattices 270-2700 skip 6
MILC_2064f21b676m010m050b Mval = 0.010
( QCD pion mass ~ 315 MeV)		 (10/06-4/07- Tungsten)
405 light , strange quarks , 8-39 chop , lattices 270-2700 skip 6
405 light , strange quarks , 24-55 chop , lattices 270-2700 skip 6