From d40e44ade479f7bba30d5317381cbc58c861775b Mon Sep 17 00:00:00 2001
From: Deciare <1689220+deciare@users.noreply.github.com>
Date: Tue, 18 Apr 2023 23:18:58 -0400
Subject: Option to use CPU for random number generation.

Makes a given manual seed generate the same images across different
platforms, independently of the GPU architecture in use.

Fixes #9613.
---
 modules/sd_samplers_common.py | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'modules/sd_samplers_common.py')

diff --git a/modules/sd_samplers_common.py b/modules/sd_samplers_common.py
index a1aac7cf..e6a372d5 100644
--- a/modules/sd_samplers_common.py
+++ b/modules/sd_samplers_common.py
@@ -60,3 +60,12 @@ def store_latent(decoded):
 
 class InterruptedException(BaseException):
     pass
+
+if opts.use_cpu_randn:
+    import torchsde._brownian.brownian_interval
+
+    def torchsde_randn(size, dtype, device, seed):
+        generator = torch.Generator(devices.cpu).manual_seed(int(seed))
+        return torch.randn(size, dtype=dtype, device=devices.cpu, generator=generator).to(device)
+
+    torchsde._brownian.brownian_interval._randn = torchsde_randn
-- 
cgit v1.2.1


From 5fe0dd79beaa5ef737ff85254ee9870f60ae9464 Mon Sep 17 00:00:00 2001
From: AUTOMATIC <16777216c@gmail.com>
Date: Sat, 29 Apr 2023 11:29:37 +0300
Subject: rename CPU RNG to RNG source in settings, add infotext and parameters
 copypaste support to RNG source

---
 modules/sd_samplers_common.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'modules/sd_samplers_common.py')

diff --git a/modules/sd_samplers_common.py b/modules/sd_samplers_common.py
index e6a372d5..bc074238 100644
--- a/modules/sd_samplers_common.py
+++ b/modules/sd_samplers_common.py
@@ -61,7 +61,8 @@ def store_latent(decoded):
 class InterruptedException(BaseException):
     pass
 
-if opts.use_cpu_randn:
+
+if opts.randn_source == "CPU":
     import torchsde._brownian.brownian_interval
 
     def torchsde_randn(size, dtype, device, seed):
-- 
cgit v1.2.1