Commits on Oct 11, 2019

1. Removing Caveats …

   - Downstream binary libraries that depend on BLAS such as SuiteSparse (solving sparse linear systems) and ARPACK (for large scale eigenvalue computations) will currently not work once MKL.jl has been installed. We are working on removing these limitations.
   
   
   
   Tested on JuliaLinearAlgebra#14 and there are no issues.
   ```julia
   julia> using LinearAlgebra; BLAS.vendor()
   :mkl
   
   julia> using Arpack, SparseArrays
   
   julia> ⊗(A, B) = kron(A, B);
   
   julia> function Hub_ED(U, μ, L,)
              id = [1 0; 0 1]
              c = [0 0; 1 0]
   
              c_up = c ⊗ id
              c_dn = id ⊗ c
              id² = id ⊗ id
   
              n_up = c_up' * c_up
              n_dn = c_dn' * c_dn
   
              Û =  U*(n_up * n_dn) - μ*(n_up + n_dn)
   
              c_dg_up(i) = foldl(⊗, sparse.([i==j ? c_up' : id² for j in 1:L]))
              cup(i)     = foldl(⊗, sparse.([i==j ? c_up  : id² for j in 1:L]))
              c_dg_dn(i) = foldl(⊗, sparse.([i==j ? c_dn' : id² for j in 1:L]))
              cdn(i)     = foldl(⊗, sparse.([i==j ? c_dn  : id² for j in 1:L]))
              Ûf(i)      = foldl(⊗, sparse.([i==j ? Û     : id² for j in 1:L]))
   
              function c_dg_c(i)
                  out = c_dg_up(i)*cup(i+1) + c_dg_dn(i)*cdn(i+1)
                  out + out'
              end
   
              H = -sum(c_dg_c, 1:(L-1)) + sum(Ûf, 1:L)
              @show typeof(H)
              (λ, ϕ), t = @timed Arpack.eigs(H, nev=1, which=:SR)
              λ, ϕ, t
          end
   Hub_ED (generic function with 1 method)
   
   julia> Hub_ED(1, 1, 8)
   typeof(H) = SparseMatrixCSC{Int64,Int64}
   ([-15.813000555255263], [-1.949487752371787e-18; -2.0668833887408264e-18; … ; 2.035974575802704e-18; 1.216026630767711e-18], 0.340870967)
   ```
   
   
   
   - It is not possible to revert the effect of install MKL.jl. To return to OpenBLAS, it is necessary to reinstall Julia.
   Enabling openBlas is possible using `MKL.enable_openblas_startup()`
   
   
   Tested on Windows:
   ```julia
   julia> using MKL
   
   julia> MKL.enable_openblas_startup()
   [ Info: Replacing libblas_name in C:\Julia-1.3.0-rc3\bin\..\share\julia\base\build_h.jl
   ┌ Info: Building `inference.o`:
   └ `'C:\Julia-1.3.0-rc3\bin\julia.exe' -C native --output-ji 'C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\basecompiler.ji' --output-o 'C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\basecompiler.o' compiler/compiler.jl`
   essentials.jl
   ctypes.jl
   generator.jl
   reflection.jl
   options.jl
   promotion.jl
   tuple.jl
   pair.jl
   traits.jl
   range.jl
   expr.jl
   error.jl
   bool.jl
   number.jl
   int.jl
   operators.jl
   pointer.jl
   refvalue.jl
   indices.jl
   array.jl
   abstractarray.jl
   bitarray.jl
   bitset.jl
   abstractdict.jl
   abstractset.jl
   iterators.jl
   namedtuple.jl
   docs/core.jl
   ordering.jl
   sort.jl
   compiler/utilities.jl
   compiler/validation.jl
   compiler/inferenceresult.jl
   compiler/params.jl
   compiler/inferencestate.jl
   compiler/typeutils.jl
   compiler/typelimits.jl
   compiler/typelattice.jl
   compiler/tfuncs.jl
   compiler/abstractinterpretation.jl
   compiler/typeinfer.jl
   compiler/optimize.jl
   compiler/ssair/driver.jl
   compiler/ssair/ir.jl
   compiler/ssair/domtree.jl
   compiler/ssair/slot2ssa.jl
   compiler/ssair/queries.jl
   compiler/ssair/passes.jl
   compiler/ssair/inlining.jl
   compiler/ssair/verify.jl
   compiler/ssair/legacy.jl
   compiler/bootstrap.jl
   ┌ Info: Building `sys.o`:
   └ `'C:\Julia-1.3.0-rc3\bin\julia.exe' -C native --output-ji 'C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\sys.ji' --output-o 'C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\sys.o' -J 'C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\basecompiler.ji' --startup-file=no sysimg.jl`
   coreio.jl
   exports.jl
   essentials.jl
   ctypes.jl
   gcutils.jl
   generator.jl
   reflection.jl
   options.jl
   promotion.jl
   tuple.jl
   expr.jl
   pair.jl
   traits.jl
   range.jl
   error.jl
   bool.jl
   number.jl
   int.jl
   operators.jl
   pointer.jl
   refvalue.jl
   refpointer.jl
   checked.jl
   indices.jl
   array.jl
   abstractarray.jl
   subarray.jl
   views.jl
   baseext.jl
   ntuple.jl
   abstractdict.jl
   iterators.jl
   namedtuple.jl
   hashing.jl
   rounding.jl
   float.jl
   twiceprecision.jl
   complex.jl
   rational.jl
   multinverses.jl
   abstractarraymath.jl
   arraymath.jl
   simdloop.jl
   reduce.jl
   reshapedarray.jl
   reinterpretarray.jl
   bitarray.jl
   bitset.jl
   multimedia.jl
   some.jl
   dict.jl
   abstractset.jl
   set.jl
   char.jl
   strings/basic.jl
   strings/string.jl
   strings/substring.jl
   build_h.jl
   version_git.jl
   osutils.jl
   c.jl
   io.jl
   iobuffer.jl
   intfuncs.jl
   strings/strings.jl
   strings/search.jl
   strings/unicode.jl
   strings/util.jl
   strings/io.jl
   parse.jl
   shell.jl
   regex.jl
   pcre.jl
   show.jl
   arrayshow.jl
   methodshow.jl
   cartesian.jl
   multidimensional.jl
   permuteddimsarray.jl
   broadcast.jl
   missing.jl
   version.jl
   sysinfo.jl
   libc.jl
   env.jl
   linked_list.jl
   condition.jl
   threads.jl
   lock.jl
   task.jl
   weakkeydict.jl
   logging.jl
   libuv.jl
   uv_constants.jl
   asyncevent.jl
   iostream.jl
   stream.jl
   filesystem.jl
   cmd.jl
   process.jl
   grisu/grisu.jl
   secretbuffer.jl
   floatfuncs.jl
   math.jl
   reducedim.jl
   accumulate.jl
   ordering.jl
   sort.jl
   fastmath.jl
   Enums.jl
   gmp.jl
   mpfr.jl
   combinatorics.jl
   hashing2.jl
   irrationals.jl
   mathconstants.jl
   printf.jl
   meta.jl
   channels.jl
   deepcopy.jl
   download.jl
   summarysize.jl
   errorshow.jl
   stacktraces.jl
   initdefs.jl
   threadcall.jl
   uuid.jl
   loading.jl
   util.jl
   asyncmap.jl
   experimental.jl
   deprecated.jl
   docs\basedocs.jl
   client.jl
   docs\Docs.jl
   Base  ─────────── 25.654957 seconds
   Base64  ─────────  3.794240 seconds
   CRC32c  ─────────  0.010188 seconds
   SHA  ────────────  0.181228 seconds
   FileWatching  ───  0.091911 seconds
   Unicode  ────────  0.010193 seconds
   Mmap  ───────────  0.074751 seconds
   Serialization  ──  0.862091 seconds
   Libdl  ──────────  0.030937 seconds
   Markdown  ───────  1.054587 seconds
   LibGit2  ────────  2.649440 seconds
   Logging  ────────  0.506780 seconds
   Sockets  ────────  1.877789 seconds
   Printf  ─────────  0.012369 seconds
   Profile  ────────  0.153111 seconds
   Dates  ──────────  2.098834 seconds
   DelimitedFiles  ─  0.104160 seconds
   Random  ─────────  0.525311 seconds
   UUIDs  ──────────  0.019996 seconds
   Future  ─────────  0.011412 seconds
   LinearAlgebra  ── 12.891522 seconds
   SparseArrays  ───  6.296322 seconds
   SuiteSparse  ────  1.802302 seconds
   Distributed  ────  6.485953 seconds
   SharedArrays  ───  0.222248 seconds
   Pkg  ──────────── 13.223301 seconds
   Test  ───────────  0.961266 seconds
   REPL  ───────────  1.154462 seconds
   Statistics  ─────  0.162380 seconds
   Stdlibs total  ── 57.315055 seconds
   Sysimage built. Summary:
   Total ───────  82.973635 seconds
   Base: ───────  25.654957 seconds 30.9194%
   Stdlibs: ────  57.315055 seconds 69.0762%
   Build shared library "C:\\Users\\yahyaaba\\.julia\\packages\\PackageCompiler\\CJQcs\\sysimg\\backup\\native\\sys.dll":
     `'C:\Users\yahyaaba\.julia\packages\WinRPM\Y9QdZ\deps\usr\x86_64-w64-mingw32\sys-root\mingw\bin\gcc.exe' --sysroot 'C:\Users\yahyaaba\.julia\packages\WinRPM\Y9QdZ\deps\usr\x86_64-w64-mingw32\sys-root' -shared '-DJULIAC_PROGRAM_LIBNAME="C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\sys.dll"' -o 'C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\sys.dll' -Wl,--whole-archive 'C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\sys.o' -Wl,--no-whole-archive -std=gnu99 '-IC:\Julia-1.3.0-rc3\include\julia' -DJULIA_ENABLE_THREADING=1 '-LC:\Julia-1.3.0-rc3\bin' -Wl,--stack,8388608 -ljulia -lopenlibm -m64 -Wl,--export-all-symbols`
   [ Info: Copying system image: C:\Users\yahyaaba\.julia\packages\PackageCompiler\CJQcs\sysimg\backup\native\sys.dll to C:\Julia-1.3.0-rc3\lib\julia\sys.dll
   ```
   After restart:
   ```julia
   julia> using LinearAlgebra
   
   julia> BLAS.vendor()
   :openblas64
   ```
   
   - The current version of MKL.jl doesn't have access to the same precompilation information as the official binaries and source builds so the REPL will have more latency after MKL.jl has been installed. It should be possible to fix this once Julia 1.1 has been released. See JuliaLinearAlgebra#1.
   
   Tried on Windows and many different installations, only the first boot may take a little longer (less than 20 seconds). The next boots is just the same as normal Julia (less than 5 seconds).

   

   aminya committed Oct 11, 2019
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