dataflow

I am trying to know the number of ones in a 4-bit binary number in verilog but no output happens. I've tried several approaches this is the one I think should work but it doesn't. module ones(one,in); input [3:0]in; output [1:0]one; assign one = 2'b00; assign one = one+in[3]+in[2]+in[1]+in[0] ; endmodule First, you can't assign the variable twice. Second, your range is off, 2 bits can only go from 0 to 3. You need a 3 bit output to count up to 4. This is more like what you need: module ones( output wire [2:0] one, input wire [3:0] in ); assign one = in[3]+in[2]+in[1]+in[0] ; endmodule toolic

I have a dataflow streaming job with Pub/Sub subscription as an unbounded source. I want to know at what stage does dataflow acks the incoming pub/sub message. It appears to me that the message is lost if an exception is thrown during any stage of the dataflow pipeline. Also I'd like to know how to the best practices for writing dataflow pipeline with pub/sub unbounded source for message retrieval on failure. Thank you! The Dataflow Streaming Runner acks pubsub messages received by a bundle after the bundle has succeeded and results of the bundle (outputs and state mutations etc) have been

I have done a lot of research to figure out how a DFG can be created for an application from its source code. There are DFG's available online for certain applications such as MP3 Decoder, JPEG compression and H.263 Decoder. I haven't been able to figure out how I can create a DFG for an application such as HEVC from its source code? Are there any tools which can instantly generate data flow graphs for such elaborate applications or does it have to be done manually? Please advise me regarding this matter. EDIT: I used Doxygen for HEVC and I could see how different functions were interacting

I have an SSIS package with a Data Flow that takes an ADO.NET data source (just a small table), executes a select * query, and outputs the query results to a flat file (I've also tried just pulling the whole table and not using a SQL select). The problem is that the data source pulls a column that is a Money datatype, and if the value is not zero, it comes into the text flat file just fine (like '123.45'), but when the value is zero, it shows up in the destination flat file as '.00'. I need to know how to get the leading zero back into the flat file. I've tried various datatypes for the output

I wonder if it is possible in Flink to share the state among operators. Say, for instance, that I have partitioning by key on an operator and I need a piece of state of partition A inside partition C (for any reason) (fig 1.a), or I need the state of operator C in downstream operator F (fig 1.b). I know it is possible to broadcast records to all partitions. So, if you include the internal state of an operator inside the records, you can share your internal state with downstream operators. However, this could be an expensive operation instead of simply letting op1 specifically ask for op2 state

I have an array of objects, Where each object has an id and a ParentId property (so they can be arranged in trees). They are in no particular order. Please note that the id 's and parentId 's will not be integers, they will be strings (just wanted to have the sample code cleaner..) There is only one root: lets say its id :1 The data looks like so: data = [ { id:"id-2", parentId:"id-3" }, { id:"id-4", parentId:"2" }, { id:"id-3", parentId:"id-4" }, { id:"id-5", parentId:"id-4" }, { id:"id-6", parentId:"id-1" }, { id:"id-7", parentId:"id-1" } // and so on... ] I am looking for a efficient way to

My problem is the following: I have some python classes that have properties that are derived from other properties; and those should be cached once they are calculated, and the cached results should be invalidated each time the base properties are changed. I could do it manually, but it seems quite difficult to maintain if the number of properties grows. So I would like to have something like Makefile rules inside my objects to automatically keep track of what needs to be recalculated. The desired syntax and behaviour should be something like that: # this does dirty magic, like generating the