mratsim

import sequtils

# Producers' side
# ----------------------------------------------------

# Note, for this example, the producer and consumer are on the same thread
# In the actual implementation, "ProducersRangePromises"
# must be atomicRefCounted and the items in fulfilled must be atomic as well.

type

mratsim

processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 85
model name	: Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz
stepping	: 4
microcode	: 0x2000043
cpu MHz		: 1406.852
cache size	: 25344 KB
physical id	: 0

mratsim

import tables, sequtils, sugar, macros, sets, heapqueue, strutils

## nimconstraint: A CSP-Solver written in Nim
##      Author: Timothy Hornick @Xydium
##      Date: 20 December, 2019

type
    Variable[T] = ref object

mratsim

ethereum/eth2.0-pm#112

—————— Nimbus

Core:

• Started on attestation aggregation
• benchmark tool in the zcli vein

Sysadmin:

mratsim

------------------- MODULE event_notifiers -----------------------
(*
Formal specification of the event_notifiers datastructure.
It allows a single consumer to be put to sleep and being woken up
by multiple producers so that the consumer is able to consume the incoming messages (steal requests).
It combines a prepare phase "intendToSleep" with commit phase "wait".
In between the consumer sends a message to its parent that it is going to sleep.
The commit phase is aborted when any producers signal an incoming message.
There should be no deadlock, i.e. an incoming message being signaled but the consumer stays sleeping
as in the runtome the main thread may be the only one awake and wouldn't be able to awaken its children

mratsim

# beacon_chain
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed and distributed under either of
#   * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
#   * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.

proc insertedAtExits(ast: NimNode, statement: NimNode): NimNode =
  ## Scan an AST, copy it with ``statement`` inserted at each exit point
  ##

mratsim

import macros

proc foo() =
  for i in 0 ..< 10:
    for j in 0 ..< 10:
      proc task(env: string) {.nimcall.} =
        echo env
      task("i: " & $i & ", j: " & $j)

foo()

mratsim

2019-12-05 Eth2 Impl call 29
https://github.com/ethereum/eth2.0-pm/issues/108

Nimbus updates

- Core:
  Finished the last SSZ bugs on consensus objects last week so now it can be dumped

  Optimizations: removing quadratic behaviours that reduced our CI time from 50min to less than 20min

mratsim

2019-12-04 - Eth2 Networking Call 0

Agenda: https://github.com/ethereum/eth2.0-pm/issues/106

——
Intro:

No one took complete ownership of networking,
—> busy
—> no p2p

mratsim

Nimbus updates

core / Testnet:

- Cleaned up leftovers from 0.8.x spec: shard, crosslink, …

- We have our weekly testnet setup in place:
  rebooted on Tuesday morning and stable for a week.

- 0.9.1 compatriot, waiting for 0.9.2