How to assigne Java thread to a specific cpu core

Hello everyone,
I want to ask a complicated question. How can I assign Java threads to specific core in a multi-threaded application. The underlyinsg OS can be Linux or Windows. Is there any option provided in JVM can do it?
If I want to fork a process using C, how can I mix the Java and C together.
I am looking forward your suggestions.
Thank you.

yang2007 wrote:
Can I fork several Java processes using C and letting each Java process run on a core? These would be questions for a C forum, or one for the OS on which you wish to run this.
The benefit may be to reduce the interference.You're assuming that you are smarter at thread scheduling than the algorithms written, tested, and honed over decades by people whose job is specifically that.

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CREATE OR REPLACE PACKAGE body xxpa_proj_conv_pkg as
PROCEDURE xxpa_create_project_proc(O_ERRBUF OUT VARCHAR2,O_RETCODE OUT VARCHAR2)
is
variables need to derive global parameters
v_responsibility_id NUMBER; --- PA Supervisor responsibility id
v_user_id NUMBER;
deriving global parameters-
-- Variables needed for API standard parameters
v_api_version_number NUMBER := 1.0;
v_commit VARCHAR2(1) := 'F';
v_return_status VARCHAR2(1);
v_init_msg_list VARCHAR2(1) := 'F';
v_msg_count NUMBER;
v_msg_index_out NUMBER;
v_msg_data VARCHAR2(2000);
v_data VARCHAR2(2000);
v_workflow_started VARCHAR2(1) := 'Y';
v_pm_product_code VARCHAR2(10);
---variables for catching errors---
v_error_flag number:=0;
-- Predefined Composite data types
v_project_in PA_PROJECT_PUB.PROJECT_IN_REC_TYPE;
v_project_out PA_PROJECT_PUB.PROJECT_OUT_REC_TYPE;
v_key_members PA_PROJECT_PUB.PROJECT_ROLE_TBL_TYPE;
v_class_categories PA_PROJECT_PUB.CLASS_CATEGORY_TBL_TYPE;
v_tasks_in_rec PA_PROJECT_PUB.TASK_IN_REC_TYPE;
v_tasks_in PA_PROJECT_PUB.TASK_IN_TBL_TYPE;
v_tasks_out_rec PA_PROJECT_PUB.TASK_OUT_REC_TYPE;
v_tasks_out PA_PROJECT_PUB.TASK_OUT_TBL_TYPE;
v_CREATED_FROM_PROJECT_ID varchar2(20);
v_CARRYING_OUT_ORGANIZATION_ID varchar2(20);
v_person_id NUMBER;
v_project_role_type VARCHAR2(20);
API_ERROR EXCEPTION;
v_a NUMBER;
cursor for project in data
CURSOR cur_project_in_data IS SELECT * FROM XXPA_PROJECT_IN_STG;
cursor for task data
CURSOR cur_task_in_data IS SELECT * FROM XXPA_TASK_IN_STG;
------------------------Cursors used for validations----------------------------------
cursor for product code used for validation
cursor cprc is select distinct PROJECT_RELATIONSHIP_CODE from PA_PROJECT_CUSTOMERS;
cursor for distribution rule-
cursor cdr is select DISTRIBUTION_RULE from PA_DISTRIBUTION_RULES;
cursor for project status code
cursor cpsc is SELECT PROJECT_STATUS_CODE, PROJECT_STATUS_NAME FROM PA_PROJECT_STATUSES WHERE STATUS_TYPE = 'PROJECT';
cursor for template/created from project id
cursor ccpid is select project_id from pa_projects where template_flag='Y';
BEGIN
select user_id, responsibility_id into v_user_id, v_responsibility_id
from PA_USER_RESP_V
where user_name like 'amit_kumar%'
and responsibility_name like'PA SupervisorS';
-- --Fnd_global.apps_initialize(user_id,resp_id, resp_appl_id);
-- Fnd_global.apps_initialize(v_user_id,v_responsibility_id,275);
-- -------calling global parameters---
pa_interface_utils_pub.set_global_info
p_api_version_number =>v_api_version_number,
p_responsibility_id =>v_responsibility_id,
p_user_id =>v_user_id,
p_msg_count =>v_msg_count,
p_msg_data =>v_msg_data,
p_return_status =>v_return_status
dbms_output.put_line ('Set Global status ->' || v_return_status);
----Cursor for PRODUCT RELATED DATA-----------
FOR REC IN cur_project_in_data LOOP
-----PASSING VALUES TO THE COMPOSITE DATA TYPE(PROJECT_IN_REC_TYPE)-------
----retrieving product code-----
select lookup_code into v_pm_product_code
from pa_lookups
where lookup_type = 'PM_PRODUCT_CODE'
and meaning = 'Oracle Project Manufacturing';
-----retrieving and validating created from project id----
BEGIN
select project_id
into v_CREATED_FROM_PROJECT_ID
from pa_projects_all
where name=rec.created_from_project_name;
EXCEPTION
when others then
O_Retcode := '1';
O_Errbuf :='Incorrent CREATED_FROM_PROJECT_NAME';
Fnd_File.Put_Line (Fnd_File.LOG, O_Errbuf);
UPDATE XXPA.XXPA_PROJECT_IN_STG
SET ERROR_FLAG ='1' ,last_updation_date='sysdate' where created_from_project_name = rec.CREATED_FROM_PROJECT_NAME;
END;
-----retrieving & validating carrying out organization id-----
BEGIN
select distinct(CARRYING_OUT_ORGANIZATION_ID)
into v_CARRYING_OUT_ORGANIZATION_ID
from pa_projects_prm_v
where CARRYING_OUT_ORGANIZATION_NAME=rec.carrying_out_organization_name;
EXCEPTION
when others then
O_Retcode := '1';
O_Errbuf :='Incorrent Carrying Out Organization name';
Fnd_File.Put_Line (Fnd_File.LOG, O_Errbuf);
UPDATE XXPA.XXPA_PROJECT_IN_STG
SET ERROR_FLAG ='1' ,last_updation_date='sysdate' where carrying_out_organization_name = rec.carrying_out_organization_name;
END ;
v_project_in.pm_project_reference := rec.segment1;
v_project_in.project_name := rec.PROJECT_NAME;
v_project_in.created_from_project_id := v_CREATED_FROM_PROJECT_ID;
v_project_in.carrying_out_organization_id := v_CARRYING_OUT_ORGANIZATION_ID;
v_project_in.project_status_code := rec.PROJECT_STATUS_CODE;
v_project_in.description := rec.PROJECT_DESCRIPTION;
v_project_in.start_date := rec.PROJECT_START_DATE;
v_project_in.completion_date := rec.PROJECT_COMPLETION_DATE;
v_project_in.distribution_rule := rec.DISTRIBUTION_RULE;
v_project_in.project_relationship_code := rec.PROJECT_RELATIONSHIP_CODE;
-------------------------Validation of incoming project data--------------------------------
v_error_flag := 1;
project relationship code validation
BEGIN
for prc in cprc
loop
if (rec.PROJECT_RELATIONSHIP_CODE=prc.PROJECT_RELATIONSHIP_CODE) or (rec.PROJECT_RELATIONSHIP_CODE is null)--can be overridden from template
then
v_error_flag :=0;
else null;
end if;
end loop;
END;
project distribution rule validation
BEGIN
for dr in cdr
loop
if (rec.DISTRIBUTION_RULE=dr.DISTRIBUTION_RULE) or (rec.DISTRIBUTION_RULE is null) null since the value can be taken from template too
then
v_error_flag :=0;
else null;
end if;
end loop;
END;
project status code validation
BEGIN
for sc in cpsc
loop
if (rec.PROJECT_STATUS_CODE=sc.PROJECT_STATUS_CODE) or (rec.PROJECT_STATUS_CODE is null) null since the value can be taken from template too
then
v_error_flag :=0;
else null;
end if;
end loop;
END;
dbms_output.put_line ('Error at PROJECT_STATUS_CODE>' ||v_error_flag);
validation logic for project start date
BEGIN
if TRUNC(rec.PROJECT_START_DATE) >= TRUNC(rec.PROJECT_COMPLETION_DATE)
THEN
v_error_flag := 1;
O_Retcode := '1';
O_Errbuf :='Project start date cannnot be greater than completion date';
Fnd_File.Put_Line (Fnd_File.LOG, O_Errbuf);
END IF;
END;
validation logic for project completion date
BEGIN
if (TRUNC(rec.PROJECT_COMPLETION_DATE)<=TRUNC(rec.PROJECT_START_DATE))
then
if ( rec.PROJECT_STATUS_CODE='CLOSED' and rec.PROJECT_COMPLETION_DATE>sysdate)
THEN
v_error_flag := 1;
O_Retcode := '1';
O_Errbuf :='completion date cannot be greater than sysdate for closed projects';
Fnd_File.Put_Line (Fnd_File.LOG, O_Errbuf);
END IF;
v_error_flag := 1;
O_Retcode := '1';
O_Errbuf :='Project closed date cannot be less than start date';
end if;
END;
--------Update staging table for the error records--------
BEGIN
if v_error_flag =1
then
O_Retcode := '1';
O_Errbuf :='Incorrect project relationship code';
Fnd_File.Put_Line (Fnd_File.LOG, O_Errbuf);
UPDATE XXPA.XXPA_PROJECT_IN_STG
SET ERROR_FLAG ='1' ,last_updation_date='sysdate' where PROJECT_RELATIONSHIP_CODE = rec.PROJECT_RELATIONSHIP_CODE;
end if;
END;
-----------------------End of validation of incoming project data----------------------------------
---------------Project Task DATA-----------------
v_a:=0;
FOR tsk IN cur_task_in_data LOOP
v_tasks_in_rec.pm_task_reference :=tsk.task_reference ;
v_tasks_in_rec.task_name :=tsk.task_name;
v_tasks_in_rec.pm_parent_task_reference :=tsk.parent_task_reference ;
v_tasks_in_rec.task_start_date :=tsk.task_start_date ;
v_tasks_in_rec.task_completion_date :=tsk.task_completion_date ;
v_tasks_in(v_a) := v_tasks_in_rec;
v_a:=v_a+1;
end loop;
---------------end of task details------------------
--INIT_CREATE_PROJECT
pa_project_pub.init_project;
---------------------CREATE_PROJECT--------------------------
pa_project_pub.create_project(
p_api_version_number=> v_api_version_number,
p_commit => v_commit,
p_init_msg_list => v_init_msg_list,
p_msg_count => v_msg_count,
p_msg_data => v_msg_data,
p_return_status => v_return_status,
p_workflow_started => v_workflow_started,
p_pm_product_code => v_pm_product_code,
p_project_in => v_project_in,
p_project_out => v_project_out,
p_key_members => v_key_members,
p_class_categories => v_class_categories,
p_tasks_in => v_tasks_in,
p_tasks_out => v_tasks_out);
if v_return_status = 'S'
then
UPDATE XXPA.XXPA_PROJECT_IN_STG
SET INTERFACE_STATUS ='Success' where segment1 = v_project_out.pa_project_number; ---P->pending & S-> Success
dbms_output.put_line('New Project Id: ' || v_project_out.pa_project_id);
dbms_output.put_line('New Project Number: ' || v_project_out.pa_project_number);
else
UPDATE XXPA.XXPA_PROJECT_IN_STG
SET INTERFACE_STATUS ='Pending' where segment1 = v_project_out.pa_project_number;
raise API_ERROR;
end if;
END LOOP;
Commit;
------Handling Exception--------
EXCEPTION
WHEN api_error THEN
dbms_output.put_line('An error occured during project creation');
IF (v_msg_count > 0 ) THEN
FOR i IN 1..v_msg_count LOOP
apps.PA_INTERFACE_UTILS_PUB.get_messages(
p_msg_count => v_msg_count,
p_encoded => 'F',
p_msg_index => i,
p_msg_data => v_msg_data,
p_data => v_data,
p_msg_index_out => v_msg_index_out);
dbms_output.put_line('Error message v_data ->'||v_data);
dbms_output.put_line('Error message v_msg_data ->'||v_msg_data);
dbms_output.put_line('Error message v_msg_index_out ->'||v_msg_index_out);
dbms_output.put_line('Error message p_msg_index ->'||i);
APPS.fnd_file.put_line(APPS.FND_FILE.LOG,v_data);
END LOOP;
END IF;
WHEN OTHERS THEN
dbms_output.put_line('An error occured during conversion, SQLCODE ->'|| SQLERRM);
IF (v_msg_count >=1 ) THEN
FOR i IN 1..v_msg_count LOOP
PA_INTERFACE_UTILS_PUB.get_messages(
p_msg_count => v_msg_count,
p_msg_index => i,
p_encoded => 'F',
p_msg_data => v_msg_data,
p_data => v_data,
p_msg_index_out => v_msg_index_out);
dbms_output.put_line('Error message ->'||v_data);
APPS.fnd_file.put_line(APPS.FND_FILE.LOG,v_data);
END LOOP;
END IF;
end; --end procedure
END xxpa_proj_conv_pkg;
* Please tell me how to assign project specific task with the newly created projects??? *
Also please tell me how to assign multiple * Project_Relationship_Code * (ex: END CLIENT, GENERAL CONTRACTOR, PRIMARY) for a particular project during project creation?

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