From ab9ce394b61656c786088b14c3a3f92ec0efeec7 Mon Sep 17 00:00:00 2001
From: mtfishman <mfishman@flatironinstitute.org>
Date: Thu, 22 May 2025 15:45:09 -0400
Subject: [PATCH] Bump to MatrixAlgebraKit v0.2

---
 Project.toml              |  4 ++--
 src/factorizations/svd.jl | 18 +++++++++++++++---
 test/Project.toml         |  2 +-
 3 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/Project.toml b/Project.toml
index 4cf9329..5f9e404 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "BlockSparseArrays"
 uuid = "2c9a651f-6452-4ace-a6ac-809f4280fbb4"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
-version = "0.5.4"
+version = "0.5.5"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
@@ -39,7 +39,7 @@ GPUArraysCore = "0.1.0, 0.2"
 LinearAlgebra = "1.10"
 MacroTools = "0.5.13"
 MapBroadcast = "0.1.5"
-MatrixAlgebraKit = "0.1.2"
+MatrixAlgebraKit = "0.2"
 SparseArraysBase = "0.5"
 SplitApplyCombine = "1.2.3"
 TensorAlgebra = "0.3.2"
diff --git a/src/factorizations/svd.jl b/src/factorizations/svd.jl
index 04d187b..d1a37b6 100644
--- a/src/factorizations/svd.jl
+++ b/src/factorizations/svd.jl
@@ -12,15 +12,27 @@ struct BlockPermutedDiagonalAlgorithm{A<:MatrixAlgebraKit.AbstractAlgorithm} <:
   alg::A
 end
 
-# TODO: this is a hardcoded for now to get around this function not being defined in the
-# type domain
-function MatrixAlgebraKit.default_svd_algorithm(A::AbstractBlockSparseMatrix; kwargs...)
+function default_blocksparse_svd_algorithm(f, A; kwargs...)
   blocktype(A) <: StridedMatrix{<:LinearAlgebra.BLAS.BlasFloat} ||
     error("unsupported type: $(blocktype(A))")
+  # TODO: this is a hardcoded for now to get around this function not being defined in the
+  # type domain
+  # alg = MatrixAlgebraKit.default_algorithm(f, blocktype(A); kwargs...)
   alg = MatrixAlgebraKit.LAPACK_DivideAndConquer(; kwargs...)
   return BlockPermutedDiagonalAlgorithm(alg)
 end
 
+function MatrixAlgebraKit.default_algorithm(
+  f::typeof(svd_compact!), A::AbstractBlockSparseMatrix; kwargs...
+)
+  return default_blocksparse_svd_algorithm(f, A; kwargs...)
+end
+function MatrixAlgebraKit.default_algorithm(
+  f::typeof(svd_full!), A::AbstractBlockSparseMatrix; kwargs...
+)
+  return default_blocksparse_svd_algorithm(f, A; kwargs...)
+end
+
 function similar_output(
   ::typeof(svd_compact!),
   A,
diff --git a/test/Project.toml b/test/Project.toml
index 7d8eb2e..d59a1a1 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -28,7 +28,7 @@ DiagonalArrays = "0.3"
 GPUArraysCore = "0.2"
 JLArrays = "0.2"
 LinearAlgebra = "1"
-MatrixAlgebraKit = "0.1"
+MatrixAlgebraKit = "0.2"
 Random = "1"
 SafeTestsets = "0.1"
 SparseArraysBase = "0.5"