kandi X-RAY | cxc Summary
kandi X-RAY | cxc Summary
cxc
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QUESTION
I am a newbie with CUDA. I'm learning some basic things because I want to use CUDA in other project. I have wrote this code in order to add all the elements from a squared matrix 8x8 which has been filled with 1's so the result must be 64.
...ANSWER
Answered 2021-May-05 at 16:14There are a number of issues:
- You are creating a 1-D grid (grid configuration, block configuration) so your 2-D indexing in kernel code (i,j, or x,y) doesn't make any sense
- You are passing
sum
by value. You cannot retrieve a result that way. Changes in the kernel tosum
won't be reflected in the calling environment. This is a C++ concept, not specific to CUDA. Use a properly allocated pointer instead. - In a CUDA multithreading environment, you cannot have multiple threads update the same location/value without any control. CUDA does not sort out that kind of access for you. You must use a parallel reduction technique, and a simplistic approach here could be to use atomics. You can find many questions here on the
cuda
tag discussing parallel reductions. - You're generally confusing pass by value and pass by pointer. Items passed by value can be ordinary host variables. You generally don't need a
cudaMalloc
allocation for those. You also don't usecudaMalloc
on any kind of variable except a pointer. - Your use of
cudaMemcpy
is incorrect. There is no need to take the address of the pointers.
The following code has the above items addressed:
QUESTION
I am trying to comparing datafram df1 with df2 by column cust_id, and get all rows that not in df1
...ANSWER
Answered 2021-Mar-10 at 03:12try using merge
with indicator
:
QUESTION
I'm trying to add a day to my dates which look like "2020-11-20" for November, 20, 2020. However I am encountering difficulty doing that - do I need to use the offset function? The reason I am doing this is that Vega-Lite is automatically offsetting my dates back 1 day through its GMT conversion and I cannot get it to stop. Please help!
Here is an example. If you look at the timeline graph it ends at 2020-11-19, but the final date in my data is 2020-11-20, and I need to make it so 2020-11-20 is the last date on my timeline graph.
...ANSWER
Answered 2020-Dec-16 at 20:44This issue comes from an unfortunate "feature" of how javascript parses dates. Here is a minimal example of the problem you're seeing (open in editor):
QUESTION
I'm trying to show two variables using ggplot2's polar_coord
, one variable would be reflected in the width (i.e., the length of the crust) of the pie slices and the second variable in the radius (i.e., the length of the non-crust sides) of the slices, is this possible?
In the example below, I'd like cat1 to be 4/20 (4+6+10) of the pie's circumference with a radius of 1, cat2 to be 6/20 of the circumference with a radius of 4, and cat3 to be 10/20 of the circumference with a radius of 5.
...ANSWER
Answered 2020-Oct-03 at 06:27Does this do what you want?
QUESTION
I am trying to upgrade a release and install it in case it has not been installed previously, by using the following command:
...ANSWER
Answered 2020-Apr-10 at 17:08once I have restarted the K8s cluster the issue has disappeared.
QUESTION
I can't open the socket using celery and WSL.
See the following info:
- [ ] output of
celery -A proj report
:
ANSWER
Answered 2019-Jan-23 at 22:12It sounds like you have not installed and started rabbitmq. The easiest way I have found is with docker, but you can install it in WSL with apt-get
if you are using ubuntu under WSL by following these instructions.
QUESTION
Assuming I have 3 numpy
square matrices of various shapes:
ANSWER
Answered 2020-Jan-18 at 00:08As long as you want the original values of a
and b
to be stored in the "upper left", you could go with initializing a new array with your wanted fill_value
(say, 99) and place your smaller arrays in it like this:
QUESTION
The Perl Weekly Challenge Number 10 asks us to write an implementation to parse Roman Numbers.
My solution uses reduce
. My attempt with a Subroutine works but with a Block it isn't working. What is the difference that makes it failing?
ANSWER
Answered 2019-May-31 at 07:02The placeholder variables are sorted in Unicode order ^ twigil . Rename the second variable:
QUESTION
I have the data set(image) returned from this query:
...ANSWER
Answered 2019-Oct-20 at 06:31Assuming that the user's list is passed as a list
parameter, and you want to match cxc.elementLabel
lists exactly (except for element order), this should work:
QUESTION
My RabbitMQ installation has been running for over a year using TLS connected shovels. The shovels worked with the self-signed certificates until they expired. When I recreated new certificates, the shovels still won't work even though I placed the certs, keys, and CA certs in the same locations as the previous ones. The errors I'm getting are like these (from the rabbit@hostname-sasl.log -- long lines have been "continued" with \ ):
...ANSWER
Answered 2019-Aug-07 at 22:49The problem turned out to be a misconfiguration of the RabbitMQ service itself. The configuration file /etc/rabbitmq/rabbitmq.config has an SSL section:
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PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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