remove expers

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Jaremy Creechley 2024-02-13 23:29:00 -07:00
parent 69ce89f43a
commit 816ce10932
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4 changed files with 0 additions and 126 deletions

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import std/os
import chronos
import chronos/threadsync
import chronos/unittest2/asynctests
import taskpools
## todo: setup basic async + threadsignal + taskpools example here
##
var todo: Future[float]
proc completeAfter() {.async.} =
{.cast(gcsafe).}:
await sleepAsync(500.milliseconds)
echo "completing result: "
todo.complete(4.0)
proc addNums(a, b: float): Future[float] =
{.cast(gcsafe).}:
let fut = newFuture[float]("addNums")
todo = fut
result = fut
suite "async tests":
# var tp = Taskpool.new(num_threads = 2) # Default to the number of hardware threads.
asyncTest "test":
# await sleepAsync(100.milliseconds)
let fut = addNums(1, 3)
asyncSpawn completeAfter()
echo "\nawaiting result: "
let res = await fut
echo "\nRES: ", res
check true

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import std/os
import chronos
import chronos/threadsync
import chronos/unittest2/asynctests
import taskpools
## todo: setup basic async + threadsignal + taskpools example here
##
type
ThreadArg = object
startSig: ThreadSignalPtr
doneSig: ThreadSignalPtr
value: float
proc addNums(a, b: float, ret: ptr ThreadArg) =
ret.value = a + b
os.sleep(500)
let res = ret.doneSig.fireSync().get()
if not res:
echo "ERROR FIRING!"
suite "async tests":
var tp = Taskpool.new(num_threads = 2) # Default to the number of hardware threads.
asyncTest "test":
var args = ThreadArg()
args.startSig = ThreadSignalPtr.new().get()
args.doneSig = ThreadSignalPtr.new().get()
tp.spawn addNums(1, 2, addr args)
# await sleepAsync(100.milliseconds)
await wait(args.doneSig).wait(1500.milliseconds)
echo "\nRES: ", args.value
check true

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# This is just an example to get you started. You may wish to put all of your
# tests into a single file, or separate them into multiple `test1`, `test2`
# etc. files (better names are recommended, just make sure the name starts with
# the letter 't').
#
# To run these tests, simply execute `nimble test`.
import unittest
import apatheia/tasks
test "can add":
check 10 == 10

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import std/[strutils, math, cpuinfo]
import taskpools
# From https://github.com/nim-lang/Nim/blob/v1.6.2/tests/parallel/tpi.nim
# Leibniz Formula https://en.wikipedia.org/wiki/Leibniz_formula_for_%CF%80
proc term(k: int): float =
if k mod 2 == 1:
-4'f / float(2*k + 1)
else:
4'f / float(2*k + 1)
proc piApprox(tp: Taskpool, n: int): float =
var pendingFuts = newSeq[FlowVar[float]](n)
for k in 0 ..< pendingFuts.len:
pendingFuts[k] = tp.spawn term(k) # Schedule a task on the threadpool a return a handle to retrieve the result.
for k in 0 ..< pendingFuts.len:
result += sync pendingFuts[k] # Block until the result is available.
proc main() =
var n = 1_000
var nthreads = countProcessors()
var tp = Taskpool.new(num_threads = nthreads) # Default to the number of hardware threads.
echo formatFloat(tp.piApprox(n))
tp.syncAll() # Block until all pending tasks are processed (implied in tp.shutdown())
tp.shutdown()
# Compile with nim c -r -d:release --threads:on --outdir:build example.nim
main()