opencl - Execution flow on the host just after starting the kernel -


I have many questions for which I need some explanation. Sorry if they are very basic.

  1. When we use the kernel to clEnqueueNDRangeKernel, then what exactly is the host code, does it wait for the kernel to complete or ..?

  2. Say that we have many kernels, what happens in this case? Does it happen that if a kernel has completed, then the host can get results from that kernel, while others are still computing.

  3. I openCL spec to clCreateBuffer (). Check the details of flag CL_MEM_USE_HOST_PTR for your convenience I posted it here: "This indicates that the OpenCL implementation wants to use the memory referenced by host_ptr as storage bits for the memory object."

    What can I really mean by "app" and "open anecd implementation" Apart from this, it also states that "OpenCL implementation is allowed to cache buffer content."

    1. The kernel module is executed as encrypted and asynchronously , The Cloncondirenge kernel continues immediately and the host program execution continues. To make this call synchronous, wait for the event with the last optional parameter, or call clFinish to wait for all the queued commands.

    2. Multiple kernels are executed sequentially in the same order because they are enqueued, if they are related to the same command queue.

    3. The application means that your code is running on the host. The OpenCL implementation is a library that implements the OpenCL interface. There are three components in the OpenCL program: CPU, OpenCL library (implementation), and running host code running in kernel module. There are several OpenCL implementations in it, such as AMD, NVidia etc.

      GPU

Comments

Post a Comment

Popular posts from this blog

Python SQLAlchemy：AttributeError: Neither 'Column' object nor 'Comparator' object has an attribute 'schema' -

I tried to create a new database in my project, but when I run the script, I get this error, I have another project, this type of definition worked before, but now it gets a single error. I am using Python 2.7.8 and the version of SQLAlchemy module is 0.9.8. By the way, using a project flask- SQLAlchemy, it works well, I'm confused. Traceback information is as follows: Traceback (most recent call final): File "D: / Projects / IOM / db_create.py", line 4, & lt; Module & gt; From the models the base file "D: \ Projects \ OO-IM \ models.py", in line 15, in the & lt; Module & gt; Column ( 'followed_id', int (), ForeignKey ( 'user.id')) file "C: \ Python27 \ lib \ site-packages \ SQLAlchemy \ SQL \ schema.py", line 369, __new__ schema = metadata. Schema file "C: \ Python27 \ lib \ site-packages \ SQLAlchemy \ SQL \ elements.py", line 662, AttributeError in __getattr__ key): Neither 'column' object nor ...
Read more

java - How not to audit a join table and related entities using Hibernate Envers? -

I use Eners to be hibernate to audit my institutions. I have an audit entity, Foo , which includes a list & lt; Bars & gt; However, I do not want to audit the bar institutions, in the form of properties, I have written that: @inti @edicated public class Foo {@JoinTable (name = "T_FOO_BAR", joinColumns = @JoinColumn (name = "FOO_ID"), inverseJoinColumns = @JoinColumn (Name = "BAR_ID")) @ManyToMany (Cascade = Persist) @ Indited (targetAuditMode = RelationTargetAuditMode.NOT_AUDITED ) Public listing & lt; Bars & gt; GetBars () {Return bars; }} Now, I want to retrieve an amendment of foo : AuditReader reader = AuditReaderFactory.get (GetEntityManager ()); FU modification = (FU) reader.CreativeTeA () .entensEtrevision (Foo Class, 42) .getSingleResult (); Unfortunately, when I want to retrieve all the data (i.e. when it loads lazy times ), error me ORA-00942: table or view is not present , because Tried to query this: Sel...
Read more

mongodb - CakePHP paginator ignoring order, but only for certain values -

While pagging my user model in kppp, I can sort with some values, but not others. For example, I can order results from created or email , for example, but username or reputation seems to come back order by arbitrary command for example with a list of users: $ this-> paginate = array ('condition' => array ( 'User.is_active' = & gt; true), 'border' => 24, 'order' => array ('User.created' => DESC)); Works as expected, but $ this - & gt; Paged = array ('conditions' = & gt; array (' user.isIactive '= & gt; true),' border '= & gt; 24,' command '= & gt; array (' user repeats' = ' & Gt; DESC ')); No, no. I first thought that this could be a database issue, but when I search the database directly, sorted as expected. Note: I am using Mangodebi with the Mongo DB plugin of Ichikawa for the KPPHP; Pagnetizing users are used to work properl...
Read more