nested

How to parallelize correctly a nested for loops

由 喜欢而已 提交于 2019-12-07 00:02:32
问题 I'm working with OpenMP to parallelize a scalar nested for loop: double P[N][N]; double x=0.0,y=0.0; for (int i=0; i<N; i++) { for (int j=0; j<N; j++) { P[i][j]=someLongFunction(x,y); y+=1; } x+=1; } In this loop the important thing is that matrix P must be the same in both scalar and parallel versions: All my possible trials didn't succeed... 回答1: The problem here is that you have added iteration-to-iteration dependencies with: x+=1; y+=1; Therefore, as the code stands right now, it is not

Term, nested documents and must_not query incompatible in ElasticSearch?

由 不打扰是莪最后的温柔 提交于 2019-12-06 23:55:21
问题 I have trouble combining term, must_not queries on nested documents. Sense example can be found here : http://sense.qbox.io/gist/be436a1ffa01e4630a964f48b2d5b3a1ef5fa176 Here my mapping : { "mappings": { "docs" : { "properties": { "tags" : { "type": "nested", "properties" : { "type": { "type": "string", "index": "not_analyzed" } } }, "label" : { "type": "string" } } } } } with two documents in this index : { "tags" : [ {"type" : "POST"}, {"type" : "DELETE"} ], "label" : "item 1" }, { "tags" :

How to serialize a List content to a flat JSON object with Jackson?

由 独自空忆成欢 提交于 2019-12-06 23:43:03
问题 Given the following POJOs .. public class City { private String title; private List<Person> people; } ... public class Person { private String name; private int age; } I would like to let Jackson serialize instances of the classes to the following example JSON: { "title" : "New York", "personName_1" : "Jane Doe", "personAge_1" : 42, "personName_2" : "John Doe", "personAge_2" : 23 } The JSON format is defined by an external API which I cannot change. I already found that I can annotate the

Module.nesting within instance_eval/exec or module_eval/exec

由 孤者浪人 提交于 2019-12-06 23:19:54
问题 I came up with this question when I was trying to answer this. The following is an expected behaviour: module A p Module.nesting end # => [A] But the following: A.instance_eval{p Module.nesting} A.instance_exec{p Module.nesting} A.module_eval{p Module.nesting} A.module_exec{p Module.nesting} all return [] . Why do these not work as the above? Additional Question Mu is too short suggested an interesting point. If that is correct, then Module.nesting would be one of the methods and variables

How do I use transactions over multiple stored procedures?

由 雨燕双飞 提交于 2019-12-06 21:17:14
问题 Can you start a transaction in one stored procedure and then roll it back or commit it in a nested procedure? 回答1: Commit and rollback have different effects COMMIT decrements @@TRANCOUNT ROLLBACK pushes it back to zero This happens because SQL Server does not really support nested transactions. If you commit or rollback in a nested stored proc (not transaction), then you'll generate error 266 because of a @@TRANCOUNT mismatch on start and entry The rollback issue can be resolved by using SET

Update Query from a Lookup Query

由 帅比萌擦擦* 提交于 2019-12-06 20:59:27
I have a spreadsheet that I am converting to an Access DB. I have a column of typed out customer names that I want to replace with the appropriate customer number from our accounting system. I have created a table with the customer info, and a query that shows what ID needs to be inserted into the source data. What I'm looking for is: UPDATE tblStarting_Data SET CustomerID=x WHERE TEMPCustomer=y Where X and Y come from qryIDPerCustomer. Can I use a loop? How do I reference another query? Another possibility in MS Access (object names borrowed from Tomalak answer): UPDATE tblStarting_Data,

c++ abstract class with nested class. derived class and nested class

由 那年仲夏 提交于 2019-12-06 20:49:21
问题 I have the task to write own containers Linked_list and Array_list . I have one interface for them: typedef int value_type; class Container { public: class Iterator { public: Iterator(); Iterator(value_type* other); Iterator(const Iterator& other); Iterator& operator=(const Iterator& other); ... }; Container(); Container(const Container& other); ~Container(); virtual value_type& front() const=0; virtual value_type& back() const=0; virtual Iterator begin() const=0; // ... }; I did derived

Get all values from nested dictionaries in python

由 落花浮王杯 提交于 2019-12-06 20:29:27
问题 I have some dictionaries of dictionaries, like this: a['b']['c']['d']['answer'] = answer1 a['b']['c']['e']['answer'] = answer2 a['b']['c']['f']['answer'] = answer3 .... a['b']['c']['d']['conf'] = conf1 a['b']['c']['e']['conf'] = conf2 a['b']['c']['f']['conf'] = conf3 Is there a fast way to get a list of values of all answers for all elements at the third level (d,e,f)? Specifically I'd like to know if there's any mechanism implementing a wildcard (e.g., a['b']['c']['*']['answer'].values()

Nested integral within integral2 in matlab

由 爱⌒轻易说出口 提交于 2019-12-06 20:25:21
I'm attempting to take the double integral (using integral2) of a function that is defined by an integral. http://i.imgur.com/gIUsLSw.jpg Here is what I am currently attempting: t=linspace(0,1,50); fun_1= @(v) exp(.071*v) fun = @(x,y) exp(0.14*0.00607*integral(@(u)fun_1(u),0,x)).*exp(-(x-y).^2).*exp(0.14*0.00607*integral(@(u)fun_1(u),0,x)); for i=2:length(t) for j=i:length(t) A(i,j)=integral2(fun,t(i-1),t(i),t(j-1),t(j)); end end I'm receiving the error Error using integral (line 86) A and B must be floating point scalars. Can anyone provide any information on how to fix this problem. Here you

how to setup ui-router nested views

由 老子叫甜甜 提交于 2019-12-06 19:56:43
问题 I am trying to setup my app with ui-router. I am familiar with basic nested views but I am wanting to do something more complex. I have my basic setup for the main views. I would like to have a chat popup that has its own views that are independent from the main views. I want to be able to navigate the main views and not affect the states in the chat popup. So how is this done? Do i need to have a abstract state for the chat? and then have nested views from there? here is a visual. and here
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