Support Sailonline

If you haven't already - join the SAILONLINE YACHT CLUB!

Please also consider making a donation - all amounts are greatly appreciated!

Board » Technical Support » qtVlm thread

Page: First Previous 11 12 13 14 15 16 17 Next Last

I finally understand: "best performance" and "best accuracy" refer to calculation accuracy of the route, not to speed performance of the boat ...
Carlo Alberto
Sorry, I still don't understand the difference between "performance" and "accuracy".
Thanks for any assistance.
Hi Zoe,
I realized that with "best performance" the software calculates the route in a faster way, but less precise, with "best accuracy" calculates your route more slowly but the result is more accurate.
Carlo Alberto
Hi Scarabocchio,

Yes, I get that, but the difference in calculation time between the two is measured in seconds!. In my computer, using "Best accuracy" usually means extra seconds, (less than 1 minute), or so of "waiting", even on long legs routings.

To me, I don't see the reason in using "Best performance" ever.

on my Mac, best performance calculated in seconds and optimizes in a minute, calculates best accuracy in a few minutes and optimizes it for a long time (depends on how many hours do you calculate the forecast).
(I use "best accuracy" only when I want to sleep well ...)

I must have a fast computer them. I haven't seen any (routing) calculation that takes more than a minute.
I am running on a Dell Inspiron Laptop with Intel i7 at 2.30GHz and 16 GB of RAM. Windows 10. (One year old.)

Yes, sleep at night is important.
To me that is the appeal of using Qt, so I can sleep 8 hours at night. I always skip one weather update, usually the one at 2 AM, and that is fine with me. :)

Mine is a MacBookPro Retina 15" - 2,2 GHz Intel Core i7 - 16 GB RAM.
The computation time I said is related to the "automatic settings", if you change parameters the time is greatly reduced.
Best Accuracy uses more resources (memory and CPU) and takes more time. On a decent PC that should not be a problem and that should be your preferred setting.
But remember that qtVlm also runs on Android and iOS, so when running on a small phone it might be needed to reduce accuracy in order to save time (and battery). Some trials are needed in order to find the correct setting depending on your device and needs.

--- Dernière modification par maitai le 2017-04-07 06:42:50 ---

Page: First Previous 11 12 13 14 15 16 17 Next Last

Please login to post a reply.


Next Race: 00d 00h 00m

Current Races:

Fisherman's Friend 2023

A 272nm race in First 40s around the main fishing ports and grounds off Devon and Cornwall. The Western Approaches can be anything but predictable at any time of the year, but in October, with wild weather hurling itself across the Atlantic, and the occasional calm, you will need to be prepared for everything, so pack your foulies!
Race #1728
INFOby brainaid.de
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Oct 03rd 09:00 Registration Open!
▶ Flash

Stockholm to St. Petersburg - 2023
Welcome to Stockholm - are you ready to race this course of about 431nm across the Baltic and into the Gulf of Finland, from one great historic city Stockholm to another St. Petersburg? The Gulf of Finland is still ice-free so board your Club Swan 50’s and prepare. Take care and keep a weather eye. The odd stray submarine may need to be avoided but if you keep a good lookout you should soon be docking at the home of the world-renowned Hermitage Museum!
Race #1743
INFO by brainaid.de
0430 / 1030 / 1630 / 2230
Race starts: Oct 02nd 10:00 Registration Open!

▶ Flash

Sailonline's Tall Ships Re-Run 2023 - Lisbon to Cadiz

Welcome back to a re-run of the fifth and last of five virtual races representing this year's European Tall Ships Races hosted in reality by Sail Training International. This fifth race is from Lisboa, Portugal to Cadiz, Andalusia; circa 130nm around Cape St Vincent in Sailonline’s 90 metre Barque.
NOTE: Starts and Finishes in tall ships racing are always offshore to avoid conflict with shipping and shipping lanes.
Race #1729
INFO by brainaid.de
WX Updates:
0430 / 1030 / 1630 / 2230
Race starts: Oct 01st 14:00 Registration Open!

▶ Flash

Carib Rum Run 2023

Welcome to the Caribbean and Sailonline's annual Pirate race, running with International Talk Like a Pirate Day on 19 September! This is a 1759nm slalom through the rum islands of the Caribbean in our glorious Falkun superyachts! Our mission is to collect barrels from the region's distilleries and carry them to the rum-parched beaches of Cancun, Mexico. Join SYC before race end and ye befuddled scallywags can disguise yer boat for this race only with a pirate name!
Race #1698
INFO from brainaid.de
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
RACE CLOSE: Tuesday,
October 3 at 2300 UTC.
Race starts: Sep 16th 15:00 Registration Closed
▶ Flash

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member WRmirekd
  2. Sailonline Yacht Club Member FreyjaUSA
  3. Sailonline Yacht Club Member Pit8008
  4. Sailonline Yacht Club Member Sax747
  5. Sailonline Yacht Club Member rafa
  6. Sailonline Yacht Club Member Vida_Maldita
  7. Sailonline Yacht Club Member Kipper1258
  8. Sailonline Yacht Club Member sassy63
  9. Sailonline Yacht Club Member HappyHour
  10. Sailonline Yacht Club Member AL53_SSIta

View full list


Mobile Client

SYC members have the benefit of access to our mobile/lightweight web client!

The mobile client