1 files changed, 39 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/torchgpipe/default.nix b/nixpkgs/pkgs/development/python-modules/torchgpipe/default.nix
new file mode 100644
index 00000000000..e7aa53360ed
--- /dev/null
+++ b/nixpkgs/pkgs/development/python-modules/torchgpipe/default.nix
@@ -0,0 +1,39 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, isPy27
+, pytest
+, pytestrunner
+, pytestCheckHook
+, pytorch
+}:
+
+buildPythonPackage rec {
+  pname = "torchgpipe";
+  version = "0.0.5";
+
+  disabled = isPy27;
+
+  src = fetchFromGitHub {
+    owner = "kakaobrain";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0mqdavnqb8a320li2r7xw11w2lg03l59xxyg2fxpg4z57v0rbasi";
+  };
+
+  propagatedBuildInputs = [ pytorch ];
+
+  checkInputs = [ pytest pytestrunner pytestCheckHook ];
+  disabledTests = [ "test_inplace_on_requires_grad" ];
+  # seems like a harmless failure:
+  ## AssertionError:
+  ## Pattern 'a leaf Variable that requires grad has been used in an in-place operation.'
+  ## does not match 'a leaf Variable that requires grad is being used in an in-place operation.'
+
+  meta = with lib; {
+    description = "GPipe implemented in Pytorch and optimized for CUDA rather than TPU";
+    homepage = "https://torchgpipe.readthedocs.io";
+    license = licenses.asl20;
+    maintainers = [ maintainers.bcdarwin ];
+  };
+}