n192-8928p-8t version: V3.0
Release date: November 11, 2015
Machine Summary: 
  Distributed Processes: 8928
  Threads per processes: 8
Global Problem Dimensions: 
  Global nx: 3072
  Global ny: 3456
  Global nz: 5952
Processor Dimensions: 
  npx: 16
  npy: 18
  npz: 31
Local Domain Dimensions: 
  nx: 192
  ny: 192
  nz: 192
########## Problem Summary  ##########: 
Setup Information: 
  Setup Time: 1.02486
Linear System Information: 
  Number of Equations: 63191384064
  Number of Nonzero Terms: 1705277032696
Multigrid Information: 
  Number of coarse grid levels: 3
  Coarse Grids: 
    Grid Level: 1
    Number of Equations: 7898923008
    Number of Nonzero Terms: 213048374392
    Number of Presmoother Steps: 1
    Number of Postsmoother Steps: 1
    Grid Level: 2
    Number of Equations: 987365376
    Number of Nonzero Terms: 26603247160
    Number of Presmoother Steps: 1
    Number of Postsmoother Steps: 1
    Grid Level: 3
    Number of Equations: 123420672
    Number of Nonzero Terms: 3318463000
    Number of Presmoother Steps: 1
    Number of Postsmoother Steps: 1
########## Memory Use Summary  ##########: 
Memory Use Information: 
  Total memory used for data (Gbytes): 45183.4
  Memory used for OptimizeProblem data (Gbytes): 0
  Bytes per equation (Total memory / Number of Equations): 715.024
  Memory used for linear system and CG (Gbytes): 39763.3
  Coarse Grids: 
    Grid Level: 1
    Memory used: 4751.24
    Grid Level: 2
    Memory used: 594.415
    Grid Level: 3
    Memory used: 74.4331
########## V&V Testing Summary  ##########: 
Spectral Convergence Tests: 
  Result: PASSED
  Unpreconditioned: 
    Maximum iteration count: 11
    Expected iteration count: 12
  Preconditioned: 
    Maximum iteration count: 2
    Expected iteration count: 2
Departure from Symmetry |x'Ay-y'Ax|/(2*||x||*||A||*||y||)/epsilon: 
  Result: PASSED
  Departure for SpMV: 3.32371e-15
  Departure for MG: 6.07763e-14
########## Iterations Summary  ##########: 
Iteration Count Information: 
  Result: PASSED
  Reference CG iterations per set: 50
  Optimized CG iterations per set: 51
  Total number of reference iterations: 4400
  Total number of optimized iterations: 4488
########## Reproducibility Summary  ##########: 
Reproducibility Information: 
  Result: PASSED
  Scaled residual mean: 0.00483651
  Scaled residual variance: 0
########## Performance Summary (times in sec) ##########: 
Benchmark Time Summary: 
  Optimization phase: 1.79998
  DDOT: 12.5307
  WAXPBY: 31.5768
  SpMV: 312.005
  MG: 1418.04
  ALL_reduce: 123.147
  Total: 1897.31
Floating Point Operations Summary: 
  Raw DDOT: 1.71274e+15
  Raw WAXPBY: 1.71274e+15
  Raw SpMV: 1.56067e+16
  Raw MG: 8.7348e+16
  Total: 1.0638e+17
  Total with convergence overhead: 1.04294e+17
GB/s Summary: 
  Raw Read B/W: 345338
  Raw Write B/W: 79806.7
  Raw Total B/W: 425145
  Total with convergence and optimization phase overhead: 411418
GFLOP/s Summary: 
  Raw DDOT: 136683
  Raw WAXPBY: 54240.5
  Raw SpMV: 50020.6
  Raw MG: 61597.9
  Raw Total: 56068.9
  Total with convergence overhead: 54969.5
  Total with convergence and optimization phase overhead: 54258.6
User Optimization Overheads: 
  Problem setup time (sec): 1.02486
  Optimization phase time (sec): 1.79998
  Optimization phase time vs reference SpMV+MG time: 1.8876
DDOT Timing Variations: 
  Min DDOT MPI_Allreduce time: 96.5138
  Max DDOT MPI_Allreduce time: 145.523
  Avg DDOT MPI_Allreduce time: 115.739
__________ Final Summary __________: 
  HPCG result is VALID with a GFLOP/s rating of: 54258.6
      HPCG 2.4 Rating (for historical value) is: 54514.4
  Reference version of ComputeDotProduct used: Performance results are most likely suboptimal
  Please upload results from the YAML file contents to: http://hpcg-benchmark.org