This is the fifty third part of the ILP series. For your convenience you can find other parts in the table of contents in Part 1 – Boolean algebra Today we are going to implement Maximum flow in ILP. We use the following…
If you ever wondered how to create heat maps in excel, here are two simple solutions. Data preparation Create two columns with data, as presented below. Next, select values in column C and choose conditional formatting in Home ribbon (see screenshot). This way…
This is the fifty second part of the ILP series. For your convenience you can find other parts in the table of contents in Part 1 – Boolean algebra In part 2 we saw how to calculate unsigned magnitude decomposition for non-negative integer…
This is the fifty first part of the ILP series. For your convenience you can find other parts in the table of contents in Part 1 – Boolean algebra This is the fifth part of the ML series. For your convenience you can…
This is the fourth part of the ML series. For your convenience you can find other parts in the table of contents in Part 1 – Linear regression in MXNet This time we are going to implement linear regression as a function. This…
This is the third part of the ML series. For your convenience you can find other parts in the table of contents in Part 1 – Linear regression in MXNet Last time we saw how to calculate linear regression for the Iris dataset.…
This is the second part of the ML series. For your convenience you can find other parts in the table of contents in Part 1 – Linear regression in MXNet Image that you have only a data warehouse with SQL capabilities to train…
This is the first part of the Machine Learning series. For your convenience you can find other parts using the links below (or by guessing the address): Part 1 — Linear regression in MXNet Part 2 — Linear regression in SQL Part 3…
This is the ninth part of the .NET Inside Out series. For your convenience you can find other parts in the table of contents in Part 1 – Virtual and non-virtual calls in C# We know how to generate delegate from a byte…
This is the fifth part of the Async Wandering series. For your convenience you can find other parts in the table of contents in Part 1 – Why creating Form from WinForms in unit tests breaks async? If you are interested in the…
This is the eleventh part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack I presented some results suggesting that UnsafeList is faster than…
This is the tenth part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack I had .NET Core 2.1.103 x64 installed and I wanted…
This is the ninth part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack We already hijacked new in C#. Last time we did…
Let’s start with the following code:
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using System; using System.Windows.Forms; class Program1 { [STAThread] static void Main() { var form = new Form(); form.Load += (sender, e) => throw new Exception(); try { Application.Run(form); } catch(Exception e) { MessageBox.Show("This doesn't execute"); } finally { MessageBox.Show("But this shows up"); } } } |
You throw exception as soon as your form is loaded, however, catch block is not executed. What happens? Initially I though this is out of band exception which is thrown on another thread. But after some…
It sometimes happens that your EMR job crashes or hangs indefinitely with no meaningful log. You can try to capture memory dump but it is not very useful when your cluster machines have hundreds gigabytes of memory each. Below are “fixes” which worked…
When you deploy your package to Amazon Elastic Map Reduce (EMR), you can access the AWS SDK provided by the platform. This gets tricky if you compile your code against different version of SDK because then you may get very cryptic bugs in…
Today we are going to implement trivial ScheduledExecutorService in C#. Introduction We want to have a thread pool of fixed size which we can use to execute three types of tasks: One time tasks Tasks with fixed delay between executions Tasks with fixed…
This is the fourth part of the WRK series. For your convenience you can find other parts in the table of contents in Part 1 — Compiling and debugging To create a new module, you need to prepare some directories and a make…
This is the third part of the WRK series. For your convenience you can find other parts in the table of contents in Part 1 — Compiling and debugging Today we are going to write a very simple hello world in the kernel…
This is the second part of the WRK series. For your convenience you can find other parts in the table of contents in Part 1 — Compiling and debugging In this part we are going to monitor the invocation of QuerySystemInformation system function…
