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· 7 mayo, 2025

How to prevent reentrancy inside same process ?

I use the following code to protect some code for being called by multiple processes at same time :

lock +^TEMP("FOO"):0 //don't wait
quit:'$test
//critical section
//...
lock -^TEMP("FOO")

This works between processes but it does not prevent the same process entering critical section twice.

How to do that, is there any lock option ? I would like it to behave as the lock in C# or Java.

It's OK for me to use something else than LOCK instruction (eg : signals)

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Artículo
· 7 mayo, 2025 Lectura de 6 min

5 Best Solar Inverters In Australia 2025 | Sunray Power

 

Are you thinking of considering a solar power system for the future? Are you in need of guidance for the best inverter for utmost performance? Solar inverters are vital in any solar installation because they convert the energy output of solar panels to electricity to power your property. Choosing a suitable inverter is very important since it guarantees optimal performance, great lifespan, and cost savings. With the ever-increasing number of days of sunshine that Australia enjoys, the number of solar inverters has also increased. Consumers can now avail of numerous top-quality inverter solutions that would deliver exceptional results. The following general analysis focuses on Australia's five best solar inverters and educates various attributes such as reliability, advanced technology, and ease of use so that it would shine a light on your decision-making process when investing in solar energy.

 A Solar Inverter or PV inverter is the central processing unit for any Solar Panel installation and Solar Panel Price Australia. It is also one of the fundamental components of the architecture of the solar system that is vital for the generation of power. Photovoltaic cells in solar panels capture sunlight energy or store the direct energy of the sun. That energy is available in the form of direct current (DC) which is converted into alternating current (AC) through the solar inverter. Thus, the solar inverter's main task is to make electricity available from captured solar energy for home and business consumption.

 Apart from DC to AC converting, there are several other functions served by solar inverter Australia such as optimization of the power for generation, monitoring the voltage levels of the entire array, and analysis of overall headroom production for the system. Therefore, such a high-value inverter will be the investment done for efficiently sailing the waters of the solar energy world. There are a lot of inverter options in the market, making it challenging for most to identify perceived high-quality products that give really good value and infrequent maintenance or replacements.

Types Of Solar Inverter Australia

String Inverter

String inverters convert the direct current generated by solar panels into alternating current for practical uses. This process usually involves putting several solar panels into a string so that they use a single circuit to work.

Central Inverter

 Large machines that convert the DC from solar panels into AC to be sent to the electrical grid are called central inverters. These devices are generally installed outdoors and are designed for high power.

Micro Inverter

Micro inverters play a crucial role in converting direct current (DC) produced from individual solar panels into compatible alternating current (AC) in homes, offices, and the entire electrical grid.

Optimized String Inverter

Optimized String Inverter does panel-by-panel controlling and then transfers the output to a string for it to be converted into AC power.

Hybrid Inverters

A hybrid inverter is a combination of solar and battery power inverter in one unit, which allows the hybrid inverter to handle the integration of power between your PV panels, energy storage systems, and the main electricity grid.

Best 5 Solar Inverter Australia

To help support this decision-making process, we have created an extensive guide with all the 5 Best Solar Inverters available in Australia.

ABB String Inverter

String inverters are indeed the best possible inverter solutions that you can get if you are on a budget. The ABB string inverters are rather economical. It happens to be the most festively used and popular inverter in Australia. The panels are all connected together in a series, with each panel wired to a string. Many strings are connected to a single inverter, which is why these inverters are known as string inverters. The sizes of these inverters are 810mm by 325mm by 222mm and weight 26 KG. You may tally that Revolutionary Solar provides an inverter of very superior quality having a maximum performance efficiency of about 97%.

 

Goodwe Inverter

If you are looking for a solar inverter that offers something extremely special and technological, then your research ends with GooDWe Inverters as a world-accepted source of such products. Revolutionary Solar still happens to be one of the biggest suppliers of GooDWe inverters. You can always be rest assured that you will get a fully functional inverter at a price that pays for itself. For one such inverter, the cost is quite affordable. This countdown of inverters ranges from small, compact 0.7kW inverters to large, utility-scale 250kW models, made to cater for nearly every solar panel application on the market. Assuming an efficiency close to, if not above, 97.5%, and weighing just over 14 kg, these GooDWe inverters are ideal for both home and commercial installations. They do not take much effort in terms of installation or mobility and they give the option of remote monitoring via WiFi.

 

Zever Solar Inverter: 

Consult the Zever Solar inverter manual if you want to get more details such as product specifications and Zever Solar Inverter cost for the 99.50% performance-efficient but very quiet, 25DB noise-producing, solar inverter. Zever solar inverter can be installed both indoors and outdoors and weighs less than 12 kg. It does exceptionally well up to 4000 meters above sea level. The product has measurements of 341 x 395 x 172 mm. In addition, its operating temperature has a range of -25°C to +60°C.

 

Fronius Solar Inverter:

Fronius solar inverters ranging from 3.8kW to 24kW are the most preferred options for residential and commercial applications. It has a failure rate of less than 0.5%, which means that it is of superior quality and has high specifications. SnapINverter technology and a built-in fan are some of the key technologies incorporated in the Fronius inverter which allow a fast and easy installation during the fitting operation. Weighing about 21.5 kg, these inverters come with a 5-year warranty. Energy efficiency and low performance make easy energy loss prevention. Hence, the Fronius inverter is a good investment in saving energy and saving electric expenses. Fronius solar inverter price is also very much affordable and economical.

 

SunGrow Solar Inverter:

Sunray Power is the main distributor of SunGrow inverters in reflection of its being famous for reliability and quality. About 11kg and its functional temperature ranges from about -25°C to +60°C; these SunGrow inverters can withstand tough weather. They're available from 1KW up to 6.8MV, thus suitable for a wide range of applications. Efficiency ratings for this type is about 97.40%. Hence, it fully justifies the price of the SunGrow inverter. A residential battery system allows homeowners to store excess solar energy for use during the night or power outages.

Conclusion

Choosing the right solar inverter is critical to maximizing the performance of the solar power system and, in the long term, ensuring sustainable energy benefits. The 2024 rankings of Australia's five best solar inverters highlight clear advantages, including maximum efficiency, ruggedness, user-friendly monitoring systems, and integration with energy storage. Whether it's the latest technology or cost-effectiveness that you are looking for, it is available in Australia's sunlight-rich environment. Investing in any of these high-value inverters promises to lower energy costs while giving a nod to the environment.

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· 7 mayo, 2025

Xarelto 20 mg Wholesale Suppliers for Preventing Dangerous Blood Clots

Xarelto 20 mg is a widely used medicine that helps prevent dangerous blood clots in people at risk of stroke, deep vein thrombosis (DVT), and pulmonary embolism. It works by thinning the blood and stopping harmful clots from forming.

Many hospitals and pharmacies rely on trusted Xarelto 20 mg supplier to provide Xarelto in large quantities. These suppliers ensure the medicine is stored and delivered properly to maintain its quality. Wholesale suppliers often offer competitive prices and fast delivery, helping healthcare providers get the medicines they need without delay. When choosing a Xarelto 20 mg wholesale supplier, it is important to check their reputation, licenses, and ability to meet bulk orders. This helps ensure patients receive safe and effective treatment.

Read more: Specialitymedz

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Artículo
· 6 mayo, 2025 Lectura de 13 min

IRIS iRacing

 Hello IRIS Fans and Welcome to IRIS iRacing!

Here were going to take 3 laps of your time and demonstrate how I wired up my Racing SIM to IRIS for "As Real Time as It Gets" Metrics reporting.  I missed the window for the contest, which happens quite often, but I still ended up 3rd I think in the demo race in the video below.


Technical Salad

Below are the technical ingredients for this demonstration for a salad you can post on Instragram.

 
User.iRacing.cls


Dont forget to do a:

set tSC = ##class(SYS.Monitor.SAM.Config).AddApplicationClass("User.iRacing", "USER")

Then you should see your new metrics on the /api/monitor/metrics endpoint.


Notable here is my python setup on Windows:

iris_site.py

[config]
LibPath=
MaxServerConn=1
MaxServers=2
Path=
PythonPath=c:\Python\Python313\python.exe
PythonRuntimeLibrary=C:\Python\Python313\python313.dll
PythonRuntimeLibraryVersion=3.13
UUIDv1RandomMac=0
bbsiz=-1
console=,


cpf
 

def set_site_path(platform_name):
    sys.path = sys.path + __sitegetsitepackages(['C:\\Python\Python313'])    
    sys.path = sys.path + ["C:\\Python\Python313\\Lib"]

Racing SIM

Below is the SIM specifications, complete with Driver.

Gluing it all together, we have a rolling SIM emitting, scraping and serving up iRacing metrics suitable for real time display.

As Real Time as It Gets

The excuse I made for myself to derive some real value of sorts out of this was I have always wanted to be as agressive as possible with data reporting from the source to the exporter, clear through the Prometheus Scrape and the eventual dashboard.  The python sdk is wicked fast, as it reads from a memory mapped file while in session, and the other components can be configured to be agressive, but just are not by default and took some edits and daemon reloads.

In order to make this work, I found the following tweaks for necessary:

grafani.ini

min_refresh_interval = 1s

prometheus.yml
1s scrape
 

  - job_name: 'iracing'     # Override the global default and scrape targets from this job every 5 seconds.
    scrape_interval: 1s
    scrape_timeout: 1s     # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.
    static_configs:
      - targets: ['192.168.1.193:52773']
    metrics_path: '/api/monitor/metrics'

Dashboard

Newly added refresh rate can be added, and "Refresh Live Dashboards"  should be enabled.


At rest it doesnt look like much, as its designed to be real time, but a screenshot is in order to see the 5 panels.

 
Grafana Dash



Demo

The video shows us putting the Dashboard and scraping to work in a quick 3 lap shootout at Darlington Motor Speedway.

🏆 This is considered an InterSystems Best Practice

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Pregunta
· 6 mayo, 2025

Troubleshooting REST Operation

I am trying to replicate a REST call that I am able to make via a Postman call within a EnsLib.REST.GenericOperation.

It's been a while since I have messed around with trying to make external REST calls. When I execute my REST call, tSC is coming back with an error and I am trying to pinpoint why. I tried turning on ISCLOG = 5 but when calling the REST Operation from the Testing tool it is not logging anything to the ISC log.

How do we see the RAW request being sent out to verify that my request is formatted properly? tSC is coming back with an error as the message displayed in the error is "Error in sending request to server"

Method PostSearchPerson(pRequest As COM.REST.Msg.Request.PostSearchPerson.PostSearchPersonRequest, Output pResponse As COM.REST.Msg.Response.PostSearchPerson.PostSearchPersonResponse) As %Status

{

    #dim tSC As %Status = $$$OK

    set tHTTPRequest = ##class(%Net.HttpRequest).%New()

    set tHTTPRequest.SSLConfiguration = ..Adapter.SSLConfig

    set tHTTPRequest.Https = 1

    set tHTTPRequest.WriteRawMode = 1

    set tHTTPRequest.Port = ..Adapter.HTTPPort

    do tHTTPRequest.SetHeader("Host", ..Adapter.HTTPServer)

    Do tHTTPRequest.SetHeader("Accept-Encoding","application/json")

    Do tHTTPRequest.SetHeader("Content-Type","application/json")

    Do tHTTPRequest.SetHeader("api-key",..ApiKey)

    do tHTTPRequest.EntityBody.Write()

    do tHTTPRequest.OutputHeaders()

    set tRequest = ##class(%DynamicObject).%New()

    set tRequest.searchString = pRequest.searchString

    set tPayload = tRequest.%ToJSON()



    set tURL=..Adapter.URL_"/persons/search"

    set tSC = tHTTPRequest.EntityBody.Write(tPayload)

    set tHTTPResponse = ##class(%Net.HttpResponse).%New()

    set tSC = ..Adapter.SendFormDataArray(.tHTTPResponse, "POST", tHTTPRequest, tURL, tPayload)

    if $$$ISERR(tSC) {

        set tSC = $$$ERROR($$$GeneralError, "Error in sending request to the server")

        quit tSC

    }

    set responseData = {}.%FromJSON(tHTTPResponse.Data)

    set pResponse = ##class(COM.REST.Msg.Response.PostSearchPerson.PostSearchPersonResponse).%New()

    set tSC =  pResponse.%JSONImport(responseData)



   quit tSC

}

Thanks

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