wide | By which I mean use SIMD stuff

by Lokathor Rust Version: Current License: Zlib

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | wide Summary

wide is a Rust library typically used in Big Data applications. wide has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

A crate to help you go wide. Specifically, this has portable "wide" data types that do their best to be SIMD when possible.

Support

Quality

Security

License

Reuse

Support

wide has a low active ecosystem.

It has 99 star(s) with 14 fork(s). There are 4 watchers for this library.

It had no major release in the last 6 months.

There are 11 open issues and 53 have been closed. On average issues are closed in 32 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of wide is current.

Quality

wide has no bugs reported.

Security

wide has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

wide is licensed under the Zlib License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

wide releases are not available. You will need to build from source code and install.

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wide Key Features

No Key Features are available at this moment for wide.

wide Examples and Code Snippets

Generate a wide wide Adam model .

python

Lines of Code : 4

License : No License

Copy

def wide():
    X, Y = all_parity_pairs(12)
    model = ANN([2048])
    model.fit(X, Y, learning_rate=1e-4, print_period=10, epochs=300, show_fig=True)

Community Discussions

Trending Discussions on wide

Does opening a file in a child process create a separate entry in the system open file table in the kernel?

Identify cases where data sequence changes based on other column UserIDs

How do I make geom_bar colors change with gganimate when x and y are constant?

dplyr: passing variable as parameters to function

react-navigation header collapse animation with Expo

Extracting text from html and place on text area is not coming on same line?

How do I make an enum of arrays in Typescript?

When to add a column vs adding a related table?

How does SASL_SSL security protocol work? Does client verify the server (X.509 cert)?

Excel: object variable or with block not set

QUESTION

Does opening a file in a child process create a separate entry in the system open file table in the kernel?

Asked 2021-Jun-15 at 23:17

I understand that after calling fork() the child process inherits the per-process file descriptor table of its parent (pointing to the same system-wide open file tables). Hence, when opening a file in a parent process and then calling fork(), both the child and parent can write to that file without overwriting one another's output (due to a shared offset in the open-file table entry).

However, suppose that, we call open() on some file after a fork (in both the parent and the child). Will this create a separate entries in the system-wide open file table, with a separate set of offsets and read-write permission flags for the child (despite the fact that it's technically the same file)? I've tried looking this up and I don't seem to be able to find a clear answer.

I'm asking this mainly since I was playing around with writing to files, and it seems like only one the outputs of the parent and child ends up in the file in the aforementioned situation. This seemed to imply that there are separate entries in the open file table for the two separate open calls, and hence separate offsets, so the slower process overwrites the output of the other process.

To illustrate this, consider the following code:

...

ANSWER

Answered 2021-May-03 at 20:22

There is a difference between a file and a file descriptor (FD).

All processes share the same files. They don't necessarily have access to the same files, and a file is not its name, either; two different processes which open the same name might not actually open the same file, for example if the first file were renamed or unlinked and a new file were associated with the name. But if they do open the same file, it's necessarily shared, and changes will be mutually visible.

But a file descriptor is not a file. It refers to a file (not a filename, see above), but it also contains other information, including a file position used for and updated by calls to read and write. (You can use "positioned" read and write, pread and pwrite, if you don't want to use the position in the FD.) File descriptors are shared between parent and child processes, and so the file position in the FD is also shared.

Another thing stored in the file descriptor (in the kernel, where user processes can't get at it) is the list of permitted actions (on Unix, read, write, and/or execute, and possibly others). Permissions are stored in the file directory, not in the file itself, and the requested permissions are copied into the file descriptor when the file is opened (if the permissions are available.) It's possible for a child process to have a different user or group than the parent, particularly if the parent is started with augmented permissions but drops them before spawning the child. A file descriptor for a file opened in this manner still has the same permissions uf it is shared with a child, even if the child would itself be able to open the file.

Source https://stackoverflow.com/questions/67375028

QUESTION

Identify cases where data sequence changes based on other column UserIDs

Asked 2021-Jun-15 at 04:30

I am working on a data frame df which is as below:

Input: ...

ANSWER

Answered 2021-Jun-15 at 03:42

Here's a fairly straightforward way where we test the sign of the lagged difference. If the mid_sum difference sign is the same as the final_sum difference sign, they are "consistent".

Source https://stackoverflow.com/questions/67979625

QUESTION

How do I make geom_bar colors change with gganimate when x and y are constant?

Asked 2021-Jun-15 at 01:12

I'm new to gganimate and was having difficulty figuring out how to do this.

I'd like to show the spread in two different levels of a variable by animating colour transitions. I want to show this by having the narrow level transition through a smaller range of colours than the wider level in the same amount of time. Is this possible?

Here's the reproducible example I have up-to now.

...

ANSWER

Answered 2021-Jun-15 at 01:12

There is an easier way to do this based on this.

Source https://stackoverflow.com/questions/67954614

QUESTION

dplyr: passing variable as parameters to function

Asked 2021-Jun-14 at 16:09

I have written a function that gathers some data from wide to long format. I need to this this for muliple times and therefore wanted to write a function that does it. Here is my function:

...

ANSWER

Answered 2021-Jun-14 at 16:09

We could just use !!

Source https://stackoverflow.com/questions/67972033

QUESTION

react-navigation header collapse animation with Expo

Asked 2021-Jun-14 at 15:34

I am investigating if the header in react-navigation can be animated similar to the most widely used social applications like Twitter, etc.

For this purpose recently, I encountered coinbase's example which is given here.

My questions are:

In general, how the react-navigation header can be animated?
Specifically, how to blend the Coinbase example with the react-navigation?

Similarly, I could not find any clean example for react-navigation usage with react-navigation-collapsible either.

So any atomic example code is appreciated.

...

ANSWER

Answered 2021-Jun-11 at 10:30

https://reactnavigation.org/docs/stack-navigator/

Source https://stackoverflow.com/questions/67834992

QUESTION

Extracting text from html and place on text area is not coming on same line?

Asked 2021-Jun-14 at 10:26

I have a template which I want to convert to text and place in a textarea. It's working but it is coming on different lines in the textarea. How can I place it on the same line in the textarea?

...

ANSWER

Answered 2021-Jun-14 at 10:26

$(item).html().replace(/(\r\n|\n|\r)/gm, "") just return the new string and will not change the html of item. To make it work, you need to do something like $(item).html($(item).html().replace(/(\r\n|\n|\r)/gm, "")) or pass it directly to .val() like this $("#message").val($(item).html().replace(/(\r\n|\n|\r)/gm, ""));

Source https://stackoverflow.com/questions/67968474

QUESTION

How do I make an enum of arrays in Typescript?

Asked 2021-Jun-13 at 21:41

I have an object with fixed keys that I use as an enum-like object. The values are variable length arrays. This works as desired. However it requires duplicating the same type assertion on every value in the object. Is there a way to type them all at once instead of individually?

...

ANSWER

Answered 2021-Jun-13 at 13:42

The best solution I could find was using mapped types:

Source https://stackoverflow.com/questions/67958902

QUESTION

When to add a column vs adding a related table?

Asked 2021-Jun-13 at 17:09

I have a big table with over 100 million rows. I have been trimming it down for months getting rid of bad data (rows wise), trying to keep it small. I already had 9 columns on this table. I want to add a new boolean column to it. Below is the current state.

This table started off small, and now its getting pretty wide. Yet again, I am tasked with adding more information per row. This time it's a new boolean field. I expect this field to be low volume, meaning less than 10% will have this set to true. I know I can make it default null, and it is a boolean column which should be small.

However, I wanted to get some advice. This table cannot get infinitely wide, and I will need to work around this. Under these circumstances, does it make more sense to create another table and foreign key reference the record when I have additional data to add? How do the pro's handle this in database design?

The best situation for usability is to have all data on the record so any form of a query can get or calculate on the table itself without joins. I just do not have confidence that it will scale to 1 BILLION rows (insert meme).

...

ANSWER

Answered 2021-Jun-13 at 17:09

At my job I support MySQL instances that have multi-billion row tables. At that scale, care must be taken to optimize queries properly. You don't want to do a table-scan at that scale.

But that's about rows, not columns. You asked first about columns.

The way to choose between adding a column versus adding another table is to follow rules of database normalization. If the new column is for an attribute of the same entity as your current table, add the column to that table. If it's a multi-valued attribute or if it's really an attribute of some other entity, then add it to a different table.

Very, very rarely is it the right choice to make another table solely for the sake of having too many columns. A given MySQL table can have dozens of columns pretty easily, and hundreds if you're careful.

In theory, there is no limit to the number of columns that might be appropriate to put in the same table with respect to normalization. But there are limitations due to the code to store those columns in a given implementation (e.g. InnoDB storage engine in MySQL).

See https://www.percona.com/blog/2013/04/08/understanding-the-maximum-number-of-columns-in-a-mysql-table/

So the maximum number of columns for a table in MySQL is somewhere between 191 and 2829, depending on a number of factors.

In the comments on that blog, I was able to design a table that failed to be created at 59 columns. Read the blog for details.

Source https://stackoverflow.com/questions/67960709

QUESTION

How does SASL_SSL security protocol work? Does client verify the server (X.509 cert)?

Asked 2021-Jun-13 at 15:43

How SSL works is well know as it's quite widely used and described well every where. In short - SSL involves

Verifying server authenticity by client by verifying the servers X.509 certificate.
Then arriving at a symmetric key using diffie-hellman key exchange algorithm.

But I am not sure what happens withsecurity.protocol=SASL_SSL. Clients and Server communication of few technologies like Kafka etc rely on this security protocol as one of the option. Here I am worried about the point 1 above. If i get a wrong broker address (as a trick ) from some one, does SASL_SSL verify the server certificate or not is my question. If it does, then I can be sure that the received broker is not genuine and my application will not publish or subscribe to messages from this server and my data is safe.

Edit 1: Following @steffen-ullrich answer and comments And little more dig, i see below. Looks like the certificate validation is happening when used through chrome and probably its loaded in the cacerts too. So the java code is able to authenticate the server.. so seems ok..

Edit 2: Right the certificates DST and ISRG are preloaded in the JDK 11 cacerts, so the client is able to authenticate the server as commented by Stephen.

...

ANSWER

Answered 2021-Jun-13 at 02:57

What you are asking is related to another configuration please read the following description.

ssl.endpoint.identification.algorithm The endpoint identification algorithm used by clients to validate server host name. The default value is https. Clients including client connections created by the broker for inter-broker communication verify that the broker host name matches the host name in the broker’s certificate. Disable server host name verification by setting ssl.endpoint.identification.algorithm to an empty string. Type: string Default: https Importance: medium

Source https://stackoverflow.com/questions/67954146

QUESTION

Excel: object variable or with block not set

Asked 2021-Jun-13 at 12:36

Anyone know why the below code halts on range_i.Copy with error? This is related to this question but you don't need to review that question to know the answer to this one I don't think! :-) Thanks

object variable or with block not set

...

ANSWER

Answered 2021-Jun-13 at 12:36

Although you may have figured this out already, here's for the sake of having an answer on a QA site...

As noted by Raymond in the comments: "This error can occur if range_i is nothing..." - And that is exactly why your error occurs.

range_i occurs six times in your code - three key points:

You Set it to Nothing.
The If Not range_i Is Nothing Then statement
Your problem line.

Here are some key learnings from these points;

You Set your variable to Nothing but you don't declare it!

By having range_i as an undeclared variable, it's implicitly declared as a Variant data type - not a range.

You should include Dim range_ i As Range as part of your variable declarations - this will help avoid unexpected errors or issues like assigning something other than a range to the variable (Such as a value of the range rather than the range itself).

If Not range_i Is Nothing Then is the same as saying If range_i is Something Then which I don't think is your intention?

You are trying to copy some range intended to be set to a Variant variable that, as outlined above; you have never set because you first set it to Nothing, then prior to setting it to something you check if it's Not Nothing (Something) which it isn't.

Due to these issues you inevitably get the Object variable or With block variable not set Error.

You can read the documentation for this error here.

Source https://stackoverflow.com/questions/67956630

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install wide

You can download it from GitHub.
Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

Support

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