X-Git-Url: https://www.fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=pytorch.git;a=blobdiff_plain;f=speed.py;h=075b07ee3bb54deda3dc34b02cc05074d4d39381;hp=e4add261984da7a5275ceb3401d75fa06c8413a2;hb=HEAD;hpb=31ffed8a581c04094e8d2727c88de6e1d2c07a65

diff --git a/speed.py b/speed.py
index e4add26..8363a6c 100755
--- a/speed.py
+++ b/speed.py
@@ -1,32 +1,45 @@
 #!/usr/bin/env python
 
+# Any copyright is dedicated to the Public Domain.
+# https://creativecommons.org/publicdomain/zero/1.0/
+
+# Written by Francois Fleuret <francois@fleuret.org>
+
 import time, torch
 
 if torch.cuda.is_available():
-    device = torch.device('cuda')
-    sync = lambda: torch.cuda.synchronize()
+    device = torch.device("cuda")
+    sync = torch.cuda.synchronize
 else:
-    device = torch.device('cpu')
+    device = torch.device("cpu")
     sync = lambda: None
 
-nb_runs = 10000
+max_duration = 30
 d1, d2, d3 = 2048, 2048, 2048
 
-a, b = torch.rand(d1, d2).to(device), torch.rand(d2, d3).to(device)
+for t in [torch.float32, torch.float16]:
+    try:
+        a = torch.rand(d1, d2, device=device, dtype=t)
+        b = torch.rand(d2, d3, device=device, dtype=t)
+        nb_runs = 0
 
-sync()
-start_time = time.perf_counter()
-for k in range(nb_runs):
-    c = a @ b
-sync()
-duration = time.perf_counter() - start_time
+        sync()
+        start_time = time.perf_counter()
+        while time.perf_counter() - start_time < max_duration:
+            c = a @ b
+            nb_runs += 1
+        sync()
+        duration = time.perf_counter() - start_time
 
-nb_flop = float(nb_runs * d1 * d2 * d3 * 2) # 1 multiply-and-add is 2 ops
-speed = nb_flop / duration
+        nb_flop = float(nb_runs * d1 * d2 * d3 * 2)  # 1 multiply-and-add is 2 ops
+        speed = nb_flop / duration
 
-for u in [ '', 'K', 'M', 'G', 'T', 'P' ]:
-    if speed < 1e3: break
-    speed /= 1e3
+        for u in ["", "K", "M", "G", "T", "P"]:
+            if speed < 1e3:
+                break
+            speed /= 1e3
 
-print(f'{speed:.02f} {u}flops on {device}')
+        print(f"{speed:.02f} {u}flops with {t} on {device}")
 
+    except:
+        print(f"{t} is not available on {device}")