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make argument order consistent for overloads of fat7lDeriv
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| Original file line number | Diff line number | Diff line change |
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| # C.T. Peterson: force test inspired from conversation with Peter Boyle | ||
| # See Grid implementation here: | ||
| # -https://github.com/paboyle/Grid/blob/develop/tests/forces/Test_bdy.cc | ||
| import qex | ||
| import gauge/[hisqsmear] | ||
| import physics/[stagD,stagSolve] | ||
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| qexInit() | ||
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| defaultSetup() | ||
| var | ||
| sg = lo.newGauge() | ||
| sgl = lo.newGauge() | ||
| f = lo.newGauge() | ||
| ff = lo.newGauge() | ||
| p = lo.newGauge() | ||
| phi = lo.ColorVector() | ||
| psi = lo.ColorVector() | ||
| r = lo.newRNGField(RngMilc6,123456789) | ||
| mass = 0.1 | ||
| eps = 0.001 | ||
| spa = initSolverParams() | ||
| spf = initSolverParams() | ||
| info: PerfInfo | ||
| let | ||
| hisq = newHisq() | ||
| stag = newStag3(sg,sgl) | ||
| arsq = 1e-20 | ||
| frsq = 1e-12 | ||
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| spa.r2req = arsq | ||
| spa.maxits = 10000 | ||
| spf.r2req = frsq | ||
| spf.maxits = 10000 | ||
| spf.verbosity = 1 | ||
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| # -- Generic | ||
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| proc smearRephase(g: auto, sg,sgl: auto): auto {.discardable.} = | ||
| tic() | ||
| let smearedForce = hisq.smearGetForce(g,sg,sgl) | ||
| threads: | ||
| sg.setBC; sgl.setBC; | ||
| threadBarrier() | ||
| sg.stagPhase; sgl.stagPhase; | ||
| smearedForce | ||
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| proc reTrMul(x,y:auto):auto = | ||
| var d: type(eval(toDouble(redot(x[0],y[0])))) | ||
| for ir in x: d += redot(x[ir].adj, y[ir]) | ||
| result = simdSum(d) | ||
| x.l.threadRankSum(result) | ||
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| # -- Action calculation | ||
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| proc action(): float = | ||
| var s: float | ||
| stag.solve(psi, phi, -mass, spa) | ||
| threads: | ||
| var st = psi.norm2 | ||
| threadMaster: s = st | ||
| result = 0.5*s | ||
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| # -- Force calculation & momentum update | ||
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| proc smearedOneAndThreeLinkForce(f: auto, smearedForce: proc, p: auto, g:auto) = | ||
| # reverse accumulation of the derivative | ||
| # 1. Dslash | ||
| var | ||
| f1 = f.newOneOf() | ||
| f3 = f.newOneOf() | ||
| ff = f.newOneOf() | ||
| t,t3: array[4,Shifter[typeof(p),typeof(p[0])]] | ||
| for mu in 0..<f.len: | ||
| t[mu] = newShifter(p,mu,1) | ||
| discard t[mu] ^* p | ||
| t3[mu] = newShifter(p,mu,3) | ||
| discard t3[mu] ^* p | ||
| const n = p[0].len | ||
| threads: | ||
| for mu in 0..<f.len: | ||
| for i in f[mu]: | ||
| forO a, 0, n-1: | ||
| forO b, 0, n-1: | ||
| f1[mu][i][a,b] := p[i][a] * t[mu].field[i][b].adj | ||
| f3[mu][i][a,b] := p[i][a] * t3[mu].field[i][b].adj | ||
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| # 2. correcting phase | ||
| threads: | ||
| f1.setBC; f3.setBC; | ||
| threadBarrier() | ||
| f1.stagPhase; f3.stagPhase; | ||
| threadBarrier() | ||
| for mu in 0..<f.len: | ||
| for i in f[mu].odd: | ||
| f1[mu][i] *= -1 | ||
| f3[mu][i] *= -1 | ||
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| # 3. smearing | ||
| ff.smearedForce(f1,f3) | ||
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| # 4. Tₐ ReTr( Tₐ U F† ) | ||
| threads: | ||
| for mu in 0..<f.len: | ||
| for i in f[mu]: | ||
| var s {.noinit.}: typeof(f[0][0]) | ||
| s := ff[mu][i]*g[mu][i].adj | ||
| f[mu][i].projectTAH(s) | ||
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| proc fforce(f: auto) = | ||
| tic() | ||
| let smearedForce = g.smearRephase(sg,sgl) | ||
| toc("fforce smear rephase") | ||
| stag.solve(psi, phi, mass, spf) | ||
| toc("fforce solve") | ||
| f.smearedOneAndThreeLinkForce(smearedForce, psi, g) | ||
| toc("fforce olf") | ||
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| proc mdt() = | ||
| tic() | ||
| threads: | ||
| for mu in 0..<g.len: | ||
| for s in g[mu]: | ||
| g[mu][s] := exp(0.5*eps*p[mu][s])*g[mu][s] | ||
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| proc mdv() = | ||
| let s = -0.5/mass | ||
| f.fforce() | ||
| threads: | ||
| for mu in 0..<f.len: f[mu] *= s | ||
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| # -- Test | ||
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| var p1: float | ||
| g.random | ||
| threads: | ||
| p.randomTAH r | ||
| psi.gaussian r | ||
| var p2t = 0.0 | ||
| for i in 0..<p.len: p2t += p[i].norm2 | ||
| threadMaster: p1 = 0.5*p2t | ||
| discard g.smearRephase(sg,sgl) | ||
| threads: | ||
| stag.D(phi, psi, -mass) | ||
| threadBarrier() | ||
| phi.odd := 0 | ||
| psi := 0 | ||
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| # Calculate initial action | ||
| let s1 = action() | ||
| echo "ACTION 1: ", s1 | ||
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| # Update (leapfrog) | ||
| mdt(); mdv(); mdt(); | ||
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| # Calculate final action | ||
| var p2: float | ||
| discard g.smearRephase(sg,sgl) | ||
| let s2 = action() | ||
| echo "ACTION 2: ", s2 | ||
| threads: | ||
| var p2t = 0.0 | ||
| for i in 0..<p.len: | ||
| p2t += p[i].norm2 | ||
| threadMaster: p2 = 0.5*p2t | ||
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| # Calculate dS = P U dSdU | ||
| var dS: float | ||
| threads: | ||
| var dSt = 0.0 | ||
| for mu in 0..<p.len: | ||
| dSt = dSt - reTrMul(p[mu],f[mu]) | ||
| threadMaster: dS = dSt | ||
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| # Compare differences | ||
| let dH = s2+p2-s1-p1 | ||
| let (dSdt1,dSdt2) = (dS*eps,s2-s1) | ||
| echo "dt*dS/dt, dS, difference = ", dSdt1,", ", dSdt2, ", ", dSdt1-dSdt2 | ||
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| qexFinalize() |
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