Provide simple explanation Given the following snippet of kernel code:char8 m = (char8) ('w', 't', 'k', '1', 'o', 'z', 'p', 'g');m.s4321 = (char4)('c', 'n', "i", 'u');char4 vec = m.s2635;What will the contents of vec be?Select one:a. ('k, 'p', ''z')b. ('u;, 'z', ', 'c')c. None of the choices are correctd. ('t', 'z', 'k', '0')e. ('', 'p, 'n'; 'z')Clear my choiceGiven the following snippet of kernel code:_kernel void kernelA(_global float* in, local float* arr,_global float* out) {int lid = get_local_id(0);int Isize = get_local_size(0);for(int i = Isize/2; i>0; i >>= 1) {if(lid Which of the following is NOT an OpenCL class?Select one:a. cl::Taskb. cl::CommandQueuec. cl::Deviced. cl::Platforme. cl::ContextClear my choiceGiven the following snippet of kernel code:int4 vec = (int4)(-5, -1, 1, 4);vec.lo = vec.odd > vec.s2;What will the final contents of vec be?Select one:a. None of the choices are correctb. (0, -1, 1, 4)C. (-1,0, 1, 4)d.(0, 1, 1, 4)e. (-5, -1, 1, 0)Clear my choiceGiven the following information:CL_DEVICE_MAX_WORK_ITEM_SIZES:CL_DEVICE_MAX_WORK_GROUP_SIZE: 512Which of the following local sizes is/are valid?1. (512, 2, 1)2. (16, 16, 2)3. {2, 2, 64}Select one:a. 2 onlyb. 1 onlyc. 2 and 3d. 1 and 2e. 1 and 3Clear my choice512 x 521 x 256

1.The correct answer is: a). ('k', 'p', 'l', 'z')Explanation: The variable m is initialized as a…

Given the following snippet of kernel code: char8 m = (char8) ('w', 't', 'k', 'T', 'o', 'z', 'p', '9'); m.s4321 = (char4)('c', 'n', 'T', 'u'); char4 vec = m.s2635; What will the contents of vec be? Select one: a. ('k, 'p, 1, 'z') b. ('u, 'z', , 'c') c. None of the choices are correct d. ('t, 'z, "k, '0') e. (T, 'p; 'n'; 'z') Clear my choice Given the following snippet of kernel code: _kernel void kernelA__global float in, local float* arr,_global float* out) { int lid = get_local_id(0); int Isize = get_local_size(0); for(int i = Isize/2; i>0; i >>= 1) { if(lid

Given the following snippet of kernel code: char8 m = (char8) ('w', 't', 'k', 'T', 'o', 'z', 'p', '9'); m.s4321 = (char4)('c', 'n', 'T', 'u'); char4 vec = m.s2635; What will the contents of vec be? Select one: a. ('k, 'p, 1, 'z') b. ('u, 'z', , 'c') c. None of the choices are correct d. ('t, 'z, "k, '0') e. (T, 'p; 'n'; 'z') Clear my choice Given the following snippet of kernel code: _kernel void kernelA__global float in, local float* arr,_global float* out) { int lid = get_local_id(0); int Isize = get_local_size(0); for(int i = Isize/2; i>0; i >>= 1) { if(lid

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Provide simple explanation

Given the following snippet of kernel code:
char8 m = (char8) ('w', 't', 'k', '1', 'o', 'z', 'p', 'g');
m.s4321 = (char4)('c', 'n', "i", 'u');
char4 vec = m.s2635;
What will the contents of vec be?
Select one:
a. ('k, 'p', ''z')
b. ('u;, 'z', ', 'c')
c. None of the choices are correct
d. ('t', 'z', 'k', '0')
e. ('', 'p, 'n'; 'z')
Clear my choice
Given the following snippet of kernel code:
_kernel void kernelA(_global float* in, local float* arr,_global float* out) {
int lid = get_local_id(0);
int Isize = get_local_size(0);
for(int i = Isize/2; i>0; i >>= 1) {
if(lid <i) {
arr[lid] += arr[lid + i];
}
barrier(CLK_LOCAL_MEM_FENCE); // line A
}
if (lid == 0) out[get_group_id(0)] = arr[0];
}
What is the purpose of line A?
Select one:
a. To ensure data in global memory is written to correctly
b. To make sure all work-items have completed execution
c. To ensure all work-groups arrive at that statement before continuing
d. To synchronise computation between work-groups
e. To stall work-items in a work-group until the preceding statements have completed
Clear my choice

Which of the following is NOT an OpenCL class?
Select one:
a. cl::Task
b. cl::CommandQueue
c. cl::Device
d. cl::Platform
e. cl::Context
Clear my choice
Given the following snippet of kernel code:
int4 vec = (int4)(-5, -1, 1, 4);
vec.lo = vec.odd > vec.s2;
What will the final contents of vec be?
Select one:
a. None of the choices are correct
b. (0, -1, 1, 4)
C. (-1,0, 1, 4)
d.
(0, 1, 1, 4)
e. (-5, -1, 1, 0)
Clear my choice
Given the following information:
CL_DEVICE_MAX_WORK_ITEM_SIZES:
CL_DEVICE_MAX_WORK_GROUP_SIZE: 512
Which of the following local sizes is/are valid?
1. (512, 2, 1)
2. (16, 16, 2)
3. {2, 2, 64}
Select one:
a. 2 only
b. 1 only
c. 2 and 3
d. 1 and 2
e. 1 and 3
Clear my choice
512 x 521 x 256

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