slidingwindow | Golang implementation of Sliding Window Algorithm
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kandi X-RAY | slidingwindow Summary
Golang implementation of Sliding Window Algorithm for distributed rate limiting.
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QUESTION
We have Beam data pipeline running on GCP dataflow written using both Python and Java. In the beginning, we had some simple and straightforward python beam jobs that works very well. So most recently we decided to transform more java beam to python beam job. When we having more complicated job, especially the job requiring windowing in the beam, we noticed that there is a significant slowness in python job than java job which end up using more cpu and memory and cost much more.
some sample python code looks like:
...ANSWER
Answered 2022-Jan-21 at 21:31Yes, this is a very normal performance factor between Python and Java. In fact, for many programs the factor can be 10x or much more.
The details of the program can radically change the relative performance. Here are some things to consider:
- Profiling the Dataflow job (official docs)
- Profiling a Dataflow pipeline (medium blog)
- Profiling Apache Beam Python pipelines (another medium blog)
- Profiling Python (general Cloud Profiler docs)
- How can I profile a Python Dataflow job? (previous StackOverflow question on profiling Python job)
If you prefer Python for its concise syntax or library ecosystem, the approach to achieve speed is to use optimized C libraries or Cython for the core processing, for example using pandas/numpy/etc. If you use Beam's new Pandas-compatible dataframe API you will automatically get this benefit.
QUESTION
Hello I need to iterate over pairs of files and do something with them.
For example I have 4 files which are named AA2234_1.fastq.gz
AA2234_2.fastq.gz
AA3945_1.fastq.gz
AA3945_2.fastq.gz
As you can propably tell the pairs are AA2234_1.fastq.gz
<-> AA2234_2.fastq.gz
and AA3945_1.fastq.gz
<-> AA3945_2.fastq.gz
(they share the name before _
sign)
I have a command
with syntax looking like this:
initialize_of_command file1 file2 output_a output_b output_c output_d parameteres
I want this script to find the number of files with fastq.gz
extension in a directory, divide them by 2 to find number of pairs then match the pairs together using probably regex (maybe to two variables) and execute this command
for each pair once.
I have no idea how to pair up those files using regex and how to iterate over the pairs so the scripts knows through which pairs it have already iterated.
Here is my unfinished script:
...ANSWER
Answered 2022-Jan-08 at 02:50One way to iterate over pairs of arguments:
QUESTION
This is an extension of a question I asked yesterday. I have looked all over StackOverflow and have not found an instance of this specific NameError:
...ANSWER
Answered 2022-Jan-06 at 06:30I think it's due to you used expand
function in a wrong way, expand
only accepts two positional arguments, where the first one is pattern and the second one is function (optional). If you want to supply multiple patterns you should wrap these patterns in list.
After some studying on source code of snakemake, it turns out expand
function doesn't check if user provides < 3 positional arguments, there is a variable combinator
in if-else
that would only be created when there are 1 or 2 positional arguments, the massive amount of positional arguments you provide skip this part and lead to the error when it tries to use combinator
later.
Source code: https://snakemake.readthedocs.io/en/v6.5.4/_modules/snakemake/io.html
QUESTION
I am trying to do QC on RNAseq data that is tarballed. I am using Snakemake as a workflow manager and am aware that Snakemake does not like one-to-many rules. I defining a checkpoint would fix the problem but when I run the script I get this this error message with rule fastqc.
...ANSWER
Answered 2022-Jan-05 at 06:18First, glob_wildcards(INPUTDIR + "{basenames}_R1.fastq.gz")
returns a Wildcards object that contains the key:value pair for each wildcard. If you want to get the basenames, it should be glob_wildcards(INPUTDIR + "{basenames}_R1.fastq.gz").basenames
Second, I assume all fastq.gz files are generated by decompress_h1n1
checkpoint, since you already include the fastqc output in aggregate_decompress_h1n1
function. You shouldn't include those outputs again in rule all
, it leads to snakemake try to do fastqc before checkpoint got executed.
Third, you should also put your trim_qc
outputs in the aggregate_decompress_h1n1
function, basically it's the same issue as fastqc, probably the same for salmon
related rules too.
There might be a potential issue, I noticed you use wrapper for fastqc, I remember that official fastqc wrapper requires the output must have html
and zip
, while you have a raw
prefix. But I didn't see a 0.80.3
release in official document, not sure if you are using some other repository to access wrapper
QUESTION
The code works when the day1.js script is loaded in the index and if a certain snippet from the HTML template is pasted into the file, but it doesn't work when I switch to the page using ng-view with the same code. There is nothing in my day1controller. I'm pretty lost at this point and would appreciate some insight.
I keep getting the error
day1.js:5 Uncaught TypeError: Cannot read properties of null (reading 'addEventListener')
Here is my index:
...ANSWER
Answered 2021-Dec-23 at 03:51You have to use container for place your view.ng- view is a directive that works like a placeholder. It creates a placeholder where a corresponding view can be placed based on the configuration.
QUESTION
My stream analytics is ingesting a stream of messages of different types. Some are of type: telemetry
, others are of type: flags
. I need to calculate the average of over a moving window of some telemetry values but only consider those values that are preceded by a flag message with a value of true.
Put another way: the flag message turns on/off whether or not the telemetry is considered for calculation of the average.
I have tried the following query:
...ANSWER
Answered 2021-Sep-06 at 12:04I got it to work, finally. The trick was not to use the AVG OVER
clause at all. Instead, I am using a simple AVG
over a subquery in which I filter the relevant datapoints.
QUESTION
I have created a dropdown menu
...ANSWER
Answered 2021-Jun-22 at 16:17You have to access e.target.value
to get the value
QUESTION
The error: TF Lite converter throws an untraced function warning when trying to convert a temporal CNN (built using the widely used Keras TCN library: https://github.com/philipperemy/keras-tcn ), and throws in model parsing error when trying to do post-training quantization
1. System information- OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Ubuntu 18.04
- TensorFlow installation (pip package or built from source): Pip (python 3.8.8)
- TensorFlow library (version, if pip package or github SHA, if built from source): 2.3.0 (TF Base), 2.4.0 (TF-GPU)
Part 1, converting pretrained TF model to TF Lite Model:
...ANSWER
Answered 2021-Mar-22 at 14:40I had a similar issue. I found a workaround by implementing the TCN without using custom layers (it's basically just padding and Conv1D) to get rid of the untraced function issue.
For the quantization, it seems that there might be an issue with the current version of TF (2.4.0). Again, a workaround is to change the Conv1D with Conv2D with a kernel size of (1,k). It also seems that the quantization issue should be solved in tf-nightly. If you want to give it a try, then please let me know if it works in tf-nightly, as I didn't try it myself yet.
QUESTION
Having trouble with CUDA + Pytorch this is the error. I reinstalled CUDA and cudnn multiple times.
Conda env is detecting GPU but its giving errors with pytorch and certain cuda libraries. I tried with Cuda 10.1 and 10.0, and cudnn version 8 and 7.6.5, Added cuda to path and everything.
However anaconda is showing cuda tool kit 9.0 is installed, whilst I clearly installed 10.0, so I am not entirely sure what's the deal with that.
...ANSWER
Answered 2021-Mar-20 at 10:44From the list of libraries, it looks like you've installed CPU only version of the Pytorch.
QUESTION
I am trying to write an unbounded ping pipeline that takes output from a ping command and parses it to determine some statistics about the RTT (avg/min/max) and for now, just print the results.
I have already written an unbounded ping source that outputs each line as it comes in. The results are windowed every second for every 5 seconds of pings. The windowed data is fed to a Combine.globally
call to statefully process the string outputs. The problem is that the accumulators are never merged and the output is never extracted. This means that the pipeline never continues past this point. What am I doing wrong here?
ANSWER
Answered 2021-Mar-19 at 21:54One thing I notice in your code is that advance()
always returns True
. The watermark only advances on bundle completion, and I think it's runner-dependent whether a runner will ever complete a bundle if advance
ever never returns False
. You could try returning False
after a bounded amount of time/number of pings.
You could also consider re-writing this as an SDF.
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