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03/06: gnu: Add julia-bfloat16s.

From: guix-commits
Subject: 03/06: gnu: Add julia-bfloat16s.
Date: Wed, 16 Feb 2022 06:43:42 -0500 (EST)

efraim pushed a commit to branch master
in repository guix.

commit 439d48d29da1b4691ac19880527117f9e8016b18
Author: zimoun <>
AuthorDate: Thu Feb 10 19:02:01 2022 +0100

    gnu: Add julia-bfloat16s.
    * gnu/packages/julia-xyz.scm (julia-bfloat16s): New variable.
    Signed-off-by: Efraim Flashner <>
 gnu/packages/julia-xyz.scm | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/gnu/packages/julia-xyz.scm b/gnu/packages/julia-xyz.scm
index 47102ef6c5..b788276613 100644
--- a/gnu/packages/julia-xyz.scm
+++ b/gnu/packages/julia-xyz.scm
@@ -362,6 +362,34 @@ code easy by supplying a framework for writing and running 
groups of
 benchmarks as well as comparing benchmark results.")
     (license license:expat)))
+(define-public julia-bfloat16s
+  ;; Not tagged upstream
+  (let ((commit "ef6051e4308ed0c02f10168b99d226237e0ae33c")
+        (version "0.2.0"))
+    (package
+      (name "julia-bfloat16s")
+      (version version)
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "";)
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "16sr578k4i47lhziri47nvspdrsni2wc1qjhs6hzffh9si6a7jfq"))))
+      (build-system julia-build-system)
+      (home-page "";)
+      (synopsis "Define BFloat16 data type")
+      (description "This package defines the @code{BFloat16} data type.  The
+only currently available hardware implementation of this datatype are Google's
+Cloud TPUs.  As such, this package is suitable to evaluate whether using TPUs
+would cause precision problems for any particular algorithm, even without
+access to TPU hardware.  Note that this package is designed for functionality,
+not performance, so this package should be used for precision experiments
+only, not performance experiments.")
+      (license license:expat))))
 (define-public julia-bioalignments
     (name "julia-bioalignments")

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