Set the SF15 reference Nps using SF11 as base

ppigazzini · ppigazzini · commit 9d0a3b0ac7d1 · 2022-04-19T16:27:26.000+02:00
Fishtest with Stockfish 11 had 1.6MNps as reference Nps and 0.7MNps as threshold for the slow worker. Set the new reference Nps according to the average 17% slowdown. Set the new threshold for slow worker according to the 21% slowdown. - arch=bmi2 (Dual Xeon workstation) ``` sf_base = 1517458 +/- 9427 sf_test = 1259909 +/- 10794 diff = -257549 +/- 9477 speedup = -0.169724 ``` - arch=modern (core i7 3770k) ``` sf_base = 1864275 +/- 20969 sf_test = 1466315 +/- 7262 diff = -397959 +/- 14643 speedup = -0.213466 ``` The speedups are nearly the same measured after the switch to the new net arch official-stockfish/Stockfish#3927 - arch=bmi2 (Dual Xeon workstation) ``` sf_base = 1566536 +/- 6407 sf_test = 1308257 +/- 5827 diff = -258279 +/- 4440 speedup = -0.164873 ``` - arch=modern (core i7 3770k) ``` sf_base = 1946273 +/- 22064 sf_test = 1518906 +/- 11325 diff = -427366 +/- 11006 speedup = -0.219582 ```
diff --git a/server/fishtest/views.py b/server/fishtest/views.py
@@ -1238,7 +1238,7 @@ def homepage_results(request):
         machine["last_updated"] = delta_date(diff)
         if machine["nps"] != 0:
             games_per_minute += (
-                (machine["nps"] / 1280000.0)
+                (machine["nps"] / 1328000.0)
                 * (60.0 / estimate_game_duration(machine["run"]["args"]["tc"]))
                 * (
                     int(machine["concurrency"])
diff --git a/server/utils/delta_update_users.py b/server/utils/delta_update_users.py
@@ -69,7 +69,7 @@ def process_run(run, info, deltas=None):
 def build_users(machines, info):
     for machine in machines:
         games_per_hour = (
-            (machine["nps"] / 1280000.0)
+            (machine["nps"] / 1328000.0)
             * (3600.0 / estimate_game_duration(machine["run"]["args"]["tc"]))
             * (int(machine["concurrency"]) // machine["run"]["args"].get("threads", 1))
         )
diff --git a/worker/games.py b/worker/games.py
@@ -1300,16 +1300,16 @@ def parse_options(s):
         games_concurrency * threads,
     )
 
-    if base_nps < 500000 / (1 + math.tanh((worker_concurrency - 1) / 8)):
+    if base_nps < 540000 / (1 + math.tanh((worker_concurrency - 1) / 8)):
         raise FatalException(
             "This machine is too slow ({} nps / thread) to run fishtest effectively - sorry!".format(
                 base_nps
             )
         )
 
     factor = (
-        1280000 / base_nps
-    )  # 1280000 nps is the reference core, also used in fishtest views.
+        1328000 / base_nps
+    )  # 1328000 nps is the reference core, also used in fishtest views.
 
     # Adjust CPU scaling.
     scaled_tc, tc_limit = adjust_tc(run["args"]["tc"], factor)

Original file line number	Diff line number	Diff line change
`@@ -69,7 +69,7 @@ def process_run(run, info, deltas=None):`
`69`	`69`	`def build_users(machines, info):`
`70`	`70`	`for machine in machines:`
`71`	`71`	`games_per_hour = (`
`72`		`- (machine["nps"] / 1280000.0)`
	`72`	`+ (machine["nps"] / 1328000.0)`
`73`	`73`	`* (3600.0 / estimate_game_duration(machine["run"]["args"]["tc"]))`
`74`	`74`	`* (int(machine["concurrency"]) // machine["run"]["args"].get("threads", 1))`
`75`	`75`	`)`
Original file line number	Diff line number	Diff line change
`@@ -1300,16 +1300,16 @@ def parse_options(s):`
`1300`	`1300`	`games_concurrency * threads,`
`1301`	`1301`	`)`
`1302`	`1302`
`1303`		`- if base_nps < 500000 / (1 + math.tanh((worker_concurrency - 1) / 8)):`
	`1303`	`+ if base_nps < 540000 / (1 + math.tanh((worker_concurrency - 1) / 8)):`
`1304`	`1304`	`raise FatalException(`
`1305`	`1305`	`"This machine is too slow ({} nps / thread) to run fishtest effectively - sorry!".format(`
`1306`	`1306`	`base_nps`
`1307`	`1307`	`)`
`1308`	`1308`	`)`
`1309`	`1309`
`1310`	`1310`	`factor = (`
`1311`		`- 1280000 / base_nps`
`1312`		`- ) # 1280000 nps is the reference core, also used in fishtest views.`
	`1311`	`+ 1328000 / base_nps`
	`1312`	`+ ) # 1328000 nps is the reference core, also used in fishtest views.`
`1313`	`1313`
`1314`	`1314`	`# Adjust CPU scaling.`
`1315`	`1315`	`scaled_tc, tc_limit = adjust_tc(run["args"]["tc"], factor)`