Oasis | performance Open Source Navier-Stokes solver | GPU library
kandi X-RAY | Oasis Summary
kandi X-RAY | Oasis Summary
Oasis is a high-level/high-performance Open Source Navier-Stokes solver written in Python. The solver has been found to scale well weakly up to 256 CPUs on the Abel supercomputer at the University of Oslo. The scaling test was using the P2P1 version of the NSfracStep solver with IPCS_ABCN. Weak scaling on the Abel supercomputer. Timings are sampled every 10’th time step. The figure shows both the best result (over 10 time steps), the worst, and the standard deviation of the timings. .
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Top functions reviewed by kandi - BETA
- Sets up the stiffness matrix
- Attach a nullspace nullspace basis
- Assemble a matrix
- Homogenize a list of bcs
- R Update the velocity of a given orbit
- Compute the product of the given matrix
- R Compute Lij
- R Compute the inverse of a matrix
- Perform temporal hook
- Check if reseto statistics exists
- Reference function
- Hook for pre - processing pre - processing
- Add function to TStepfiles
- Add problem parameters
- Recursively update nested dicts
- Check if x is inside a bounding box
- Returns the memory usage of the process
- Helper function to print velocity pressure information
- Merge time series
- Iteratively solve scalar
- Cycle iteration
- Wrapper for save_solution
- Parse command line arguments
- Map cartesian coordinates to spherical coordinates
- Create a bounding box
- R Determine if a wall is within a boundary
Oasis Key Features
Oasis Examples and Code Snippets
Community Discussions
Trending Discussions on Oasis
QUESTION
I'm parsing an XML file using ElementTree. In my case, the root of the tree is returned as an XML itself. How do I further parse it to extract the text inside the element ?
...ANSWER
Answered 2021-Jun-12 at 00:59You have to deal with the namespaces in your xml. So try this instead:
QUESTION
I have an XML file I am reading from and trying to deserialize into an object. I get this error when I try:
System.InvalidOperationException: 'There is an error in XML document (2, 2).' InvalidOperationException: was not expected.
Here is the XML file:
...ANSWER
Answered 2021-Jun-11 at 17:40I think there are a number of issues here, more specifically with the Generated Code for the XML.
In Visual Studio, I created a new Class and copied your XML content and used Edit -> Paste Special -> Paste XML as Classes.
Here's the generated code from that exercise:
QUESTION
I'm using FastAPI and I need to represent different STIX 2 objects (from MITRE ATT&CK) with a corresponding/equivalent Pydantic model in order to return them as a response JSON.
Let's consider the AttackPattern object.
...ANSWER
Answered 2021-Jun-11 at 08:46A possible and promising approach is to generate the Pydantic model starting from the corresponding JSON Schema of the STIX object.
Luckily enough the JSON schemas for all the STIX 2 objects have been defined by the OASIS Open organization on the GitHub repository CTI-STIX2-JSON-Schemas.
In particular, the JSON Schema for the Attack-Pattern is available here.
QUESTION
Actually, we use Google IdP as a SSO / SAML authentication type for our application. We have configured it to connect our users to our application and it works fine. But recently, we have also wanted to ask a reauthentication to our users for different actions that could happen during the application lifecycle.
In deeper details, when we send a SAML request to the Google Idp, we add the attribute ForceAuthn="true" in the node "AuthnRequest" and we also add a AuthnContextClassRef to ask explicitly that we want a reauthentication by credentials.
When we send this SAML request to the Google IdP, the problem is that the IdP server doesn't ask credentials to the end user and redirect directly to the application with a successful response.
Is that normal ? Does the Google IdP support the attribute ForceAuthn="true" ? I didn't find any documentation on this topic.
Here is an example of the SAML request that has been sent to the IdP:
...ANSWER
Answered 2021-Jun-10 at 09:00Official answer from Google support: "Google doesn't currently implement Single Log out/account reauthentication, for SAML authorized services. You may alternatively have the use of "session lengths"".
QUESTION
I have a Spring Boot app which uses Hibernate to generate the below query to a postgresql database. On a fast, local system (6 fast cores with HT, lots of ram, fast ssd) the query to the database runs at a reasonable 12-65 ms.
To my surprise, once I deployed to one of Digital Ocean's virtual servers, the response of the same query dropped to an unacceptable 150-250 ms or higher. Since this is still a test environment, with almost no data on or traffic to the server, I wasn't really expecting even the cheapest servers, with only 1 shared CPU and 2gb of ram, to have any problems with this query. Am I simply in the wrong here? Upgrading the CPU to something heavier increased the performance back to what I was expecting.
In any case, is there anything wrong with the below query? Can it be optimized further? Since it's an important part of the app, I want it to be as performant as possible. Since the joins are likely taking the majority of the execution time, I'm considering smashing all the tables together into one table, at which point I'd only need a large where clause to achieve the same but without the joins. Would that be faster?
...ANSWER
Answered 2021-Jun-07 at 09:09If you want to know where the time is spent, use a profiler like the Async Profiler: https://github.com/jvm-profiling-tools/async-profiler
IntelliJ has a nice integration for it, but you can also run it yourself: https://www.jetbrains.com/help/idea/async-profiler.html
QUESTION
echo $xml->asXML();
ANSWER
Answered 2021-May-28 at 12:31Simple XML, is - as the name suggests, a very simple implementation and it looks for standard namespaces. You can use registerXPathNamespace to look for non custom ones. See example below that works for your code.
QUESTION
I am implementing SSO using an external Identity provider to which I do not have access yet.
The IDP metadata IDPSSODescriptor has one SingleSignOnService tag with a binding value of: urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST
Does this imply that I cannot initiate an authentication request to the SingleSignOnService location with a GET request or that the service will respond with a POST request?
...ANSWER
Answered 2021-May-27 at 00:43It means that the protocol endpoints that you will interact with expect POST interaction from the client (typically a browser). This is required these days for sending the assertion from the IdP to SP, but Redirect is usually acceptable in the case of the SP sending an AuthnRequest to the IdP.
QUESTION
I want to deploy the simple express application but I am stuck at a weird problem that I don't know how to solve. The problem is when I am writing the inline script in HTML file it is working perfectly fine but after using other js file instead of writing inline the Unexpected token: '<' error occurs.
This is working
...ANSWER
Answered 2021-May-22 at 04:11Express isn't serving the main.js file, only index.html.
Try changing lines 9-11 to this:
QUESTION
I'm using the ITfoxtec Identity SAML2 library with Keycloak as IdP. When requesting the IdP metadata information, the ITfoxtec Identity SAML2 library seems not to recognize the tag and expects a as the top level element in the metadata xml. Use of is described in https://docs.oasis-open.org/security/saml/v2.0/saml-metadata-2.0-os.pdf
...ANSWER
Answered 2021-May-18 at 10:45I have released version 4.6.2-beta1 with support for reading SAML 2.0 metadata with a EntitiesDescriptor root element. The first EntityDescriptor element is selected.
Please let me know if it works for you.
QUESTION
Please how can I get value of attribute Value of element StatusCode in this XML:
...ANSWER
Answered 2021-May-18 at 13:55You can try with XmlDocument.
Note: since you have a name space (xmlns ...) all elements in your xml by default in name space. hence you are getting object reference error. I have updated the code and .netfiddle. please have a look
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Install Oasis
python setup.py install --prefix=Path to where you want Oasis installed. Must be on PYTHONPATH
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