DiracIO functions

src/Dirac/Dirac.jl

@@ -627,7 +627,11 @@ function krnl_assign_pf_su2!(f::AbstractArray, p , lp::SpaceParm, t::Int64)
     return nothing
 end
 
-
 export Dw!, g5Dw!, DwdagDw!, SF_bndfix!, Csw!, pfrandomize!
 
+
+include("DiracIO.jl")
+export read_prop, save_prop, read_dpar
+
+
 end

src/Dirac/DiracIO.jl

@@ -0,0 +1,183 @@
+
+"""
+    read_prop(fname::String)
+
+Reads propagator from file `fname` using the native (BDIO) format.
+"""
+function read_prop(fname::String)
+
+    UID_HDR = 14
+    fb = BDIO_open(fname, "r")
+    while BDIO_get_uinfo(fb) != UID_HDR
+        BDIO_seek!(fb)
+    end
+    ihdr = Vector{Int32}(undef, 2)
+    BDIO_read(fb, ihdr)
+    if (ihdr[1] != convert(Int32, 1753996112)) && (ihdr[2] != convert(Int32, 5))
+        error("Wrong file format [header]")
+    end
+
+    run = BDIO.BDIO_read_str(fb)
+
+    while BDIO_get_uinfo(fb) != 1
+        BDIO_seek!(fb)
+    end
+
+
+    ifoo = Vector{Int32}(undef, 2)
+    BDIO_read(fb, ifoo)
+    ndim = convert(Int64, ifoo[1])
+    npls = convert(Int64, round(ndim*(ndim-1)/2))
+    ibc  = convert(Int64, ifoo[2])
+
+    ifoo = Vector{Int32}(undef, ndim+convert(Int32, npls))
+    BDIO_read(fb, ifoo)
+    iL  = ntuple(i -> convert(Int64, ifoo[i]),ndim)
+    ntw = ntuple(i -> convert(Int64, ifoo[i+ndim]), npls)
+
+    foopars = Vector{Float64}(undef, 4)
+    BDIO_read(fb, foopars)
+
+    footh = Vector{Float64}(undef, 4)
+
+    lp = SpaceParm{ndim}(iL, (4,4,4,4), ibc, ntw)
+    dpar = DiracParam{Float64}(SU3fund,foopars[1],foopars[2],ntuple(i -> footh[i], 4),foopars[3])
+
+
+    dtr = (2,3,4,1)
+    
+    while BDIO_get_uinfo(fb) != 8
+        BDIO_seek!(fb)
+    end
+
+    psicpu = Array{Spinor{4,SU3fund{Float64}}, 2}(undef, lp.bsz, lp.rsz)
+    
+    spvec = Vector{ComplexF64}(undef,12)
+
+    for i4 in 1:lp.iL[4]
+        for i1 in 1:lp.iL[1]
+            for i2 in 1:lp.iL[2]
+                for i3 in 1:lp.iL[3]
+                    b, r = point_index(CartesianIndex(i1,i2,i3,i4), lp)
+
+                    BDIO_read(fb, spvec)   
+                    psicpu[b,r] = Spinor{4,SU3fund{Float64}}(ntuple(i -> SU3fund{Float64}(spvec[Int(3*i - 2)],spvec[Int(3*i - 1)] , spvec[Int(3*i)] ),4))
+                
+                end
+            end
+        end
+    end
+
+    
+    BDIO_close!(fb)
+    return CuArray(psicpu)    
+end
+
+
+"""
+    save_prop(fname, psi, lp::SpaceParm, dpar::DiracParam; run::Union{Nothing,String}=nothing)
+
+Saves propagator `psi` in the file `fname` using the native (BDIO) format.
+"""
+function save_prop(fname::String, psi, lp::SpaceParm{4,M,B,D}, dpar::DiracParam; run::Union{Nothing,String}=nothing) where {M,B,D}
+
+    ihdr = [convert(Int32, 1753996112),convert(Int32,5)]
+    UID_HDR = 14
+
+    if isfile(fname)
+        fb = BDIO_open(fname, "a")
+    else
+        fb = BDIO_open(fname, "w", "Propagator of LatticeGPU.jl")
+        BDIO_start_record!(fb, BDIO_BIN_GENERIC, UID_HDR)
+        BDIO_write!(fb, ihdr)
+        if run != nothing
+            BDIO_write!(fb, run*"\0")
+        end
+        BDIO_write_hash!(fb)
+        
+        BDIO_start_record!(fb, BDIO_BIN_GENERIC, 1)
+        BDIO_write!(fb, [convert(Int32, 4)])
+        BDIO_write!(fb, [convert(Int32, B)])
+        BDIO_write!(fb, [convert(Int32, lp.iL[i]) for i in 1:4])
+        BDIO_write!(fb, [convert(Int32, lp.ntw[i]) for i in 1:M])
+        BDIO_write!(fb, [dpar.m0, dpar.csw, dpar.ct])
+        BDIO_write!(fb, [dpar.th[i] for i in 1:4])
+    end
+    BDIO_write_hash!(fb)
+
+    dtr = (2,3,4,1)
+
+    BDIO_start_record!(fb, BDIO_BIN_F64LE, 8, true)
+    psicpu = Array(psi)
+
+    for i4 in 1:lp.iL[4]
+        for i1 in 1:lp.iL[1]
+            for i2 in 1:lp.iL[2]
+                for i3 in 1:lp.iL[3]
+                    b, r = point_index(CartesianIndex(i1,i2,i3,i4), lp)
+                    for sp in 1:4
+                        for c in (:t1,:t2,:t3)
+                            BDIO_write!(fb, [getfield(psicpu[b,r].s[sp],c)])
+                        end
+                    end
+                end
+            end
+        end
+    end
+
+    BDIO_write_hash!(fb)
+    BDIO_close!(fb)
+
+    return nothing
+end
+
+
+
+"""
+    read_dpar(fname::String)
+
+Reads Dirac parameters from file `fname` using the native (BDIO) format. Returns DiracParam and SpaceParm.
+"""
+function read_dpar(fname::String)
+
+    UID_HDR = 14
+    fb = BDIO_open(fname, "r")
+    while BDIO_get_uinfo(fb) != UID_HDR
+        BDIO_seek!(fb)
+    end
+    ihdr = Vector{Int32}(undef, 2)
+    BDIO_read(fb, ihdr)
+    if (ihdr[1] != convert(Int32, 1753996112)) && (ihdr[2] != convert(Int32, 5))
+        error("Wrong file format [header]")
+    end
+
+    run = BDIO.BDIO_read_str(fb)
+
+    while BDIO_get_uinfo(fb) != 1
+        BDIO_seek!(fb)
+    end
+
+
+    ifoo = Vector{Int32}(undef, 2)
+    BDIO_read(fb, ifoo)
+    ndim = convert(Int64, ifoo[1])
+    npls = convert(Int64, round(ndim*(ndim-1)/2))
+    ibc  = convert(Int64, ifoo[2])
+
+    ifoo = Vector{Int32}(undef, ndim+convert(Int32, npls))
+    BDIO_read(fb, ifoo)
+    iL  = ntuple(i -> convert(Int64, ifoo[i]),ndim)
+    ntw = ntuple(i -> convert(Int64, ifoo[i+ndim]), npls)
+
+    foopars = Vector{Float64}(undef, 4)
+    BDIO_read(fb, foopars)
+
+    footh = Vector{Float64}(undef, 4)
+
+    lp = SpaceParm{ndim}(iL, (4,4,4,4), ibc, ntw)
+    dpar = DiracParam{Float64}(SU3fund,foopars[1],foopars[2],ntuple(i -> footh[i], 4),foopars[3])
+
+    
+    BDIO_close!(fb)
+    return dpar, lp    
+end

src/LatticeGPU.jl

@@ -58,7 +58,7 @@ include("Dirac/Dirac.jl")
 using .Dirac
 export DiracWorkspace, DiracParam
 export Dw!, g5Dw!, DwdagDw!, SF_bndfix!, Csw!, pfrandomize!
-
+export read_prop, save_prop, read_dpar
 
 include("Solvers/Solvers.jl")
 using .Solvers