From d4c264ebf13ab3a83f31f8934b9465f717b265f6 Mon Sep 17 00:00:00 2001
From: Gabriele Gristina <matrix@users.noreply.github.com>
Date: Fri, 7 Jan 2022 22:31:03 +0100
Subject: [PATCH] Hash-Mode 9820: set native_threads to 32 with Apple GPU's

---
 docs/changes.txt           | 1 +
 src/modules/module_09820.c | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/docs/changes.txt b/docs/changes.txt
index 512888fac..78886e222 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -30,6 +30,7 @@
 - Hash-Mode 9720: set native_threads to 32 with Apple GPU's
 - Hash-Mode 9800: set native_threads to 32 with Apple GPU's
 - Hash-Mode 9810: set native_threads to 32 with Apple GPU's
+- Hash-Mode 9820: set native_threads to 32 with Apple GPU's
 
 ##
 ## Technical
diff --git a/src/modules/module_09820.c b/src/modules/module_09820.c
index d4782cac7..3e12913c7 100644
--- a/src/modules/module_09820.c
+++ b/src/modules/module_09820.c
@@ -72,6 +72,12 @@ char *module_jit_build_options (MAYBE_UNUSED const hashconfig_t *hashconfig, MAY
   }
   else if (device_param->opencl_device_type & CL_DEVICE_TYPE_GPU)
   {
+    #if defined (__APPLE__)
+
+    native_threads = 32;
+
+    #else
+
     if (device_param->device_local_mem_size < 49152)
     {
       native_threads = MIN (device_param->kernel_preferred_wgs_multiple, 32); // We can't just set 32, because Intel GPU need 8
@@ -80,6 +86,8 @@ char *module_jit_build_options (MAYBE_UNUSED const hashconfig_t *hashconfig, MAY
     {
       native_threads = device_param->kernel_preferred_wgs_multiple;
     }
+
+    #endif
   }
 
   hc_asprintf (&jit_build_options, "-D FIXED_LOCAL_SIZE=%u -D _unroll", native_threads);