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pls answer the question 2 and 3

pls answer the question 2 and 3

Database System Concepts
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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pls answer the question 2 and 3

56. Given the following kernel: __kernel void something (read_only image2d_t src_image, write_only image2d_t dst_image) { int2 coord = (int2) (get_global_id(0), get_global_id(1)); float4 pixel = read_imagef(src_image, sampler, coord); pixel.xyz -= (float)coord.y/get_image_height(src_image); write_imagef(dst_image, coord, pixel); } The kernel is called for each pixel of an input image. If the input image is a white coloured image, what will the output image look like? Select one: a. The image gradually changes from black (on the left) to white (on the right) b. The image gradually changes from white (on top) to black (at the bottom) c. The image gradually changes from black (on top) to white (at the bottom) d. The output image will be purely grey in colour e. The image gradually changes from white (on the left) to black (on the right) Clear my choice Which of the following statements about the OpenCL fundamental data structures is/are FALSE? 1. Kernels are functions that run on platforms. 2. Command queues are used by the host to send commands to devices. 3. An OpenCL host can only access one device at a time. Select one: a. 1 only. b. 2 only c. 2 and 3 d. 1 and 2 e. 1 and 3 Clear my choice Which of the following statements is TRUE? Select one: a. If no image access qualifier is specified for a kernel image parameter, the default is read_only b. A kernel can have both read and write access to an image object c. Image objects can be passed the kernel using local memory d. If no address space qualifier is specified for a kernel parameter, the default is global e. Reading values beyond the boundaries of an image object will cause a segmentation fault Clear my choice
Transcribed Image Text:56. Given the following kernel: __kernel void something (read_only image2d_t src_image, write_only image2d_t dst_image) { int2 coord = (int2) (get_global_id(0), get_global_id(1)); float4 pixel = read_imagef(src_image, sampler, coord); pixel.xyz -= (float)coord.y/get_image_height(src_image); write_imagef(dst_image, coord, pixel); } The kernel is called for each pixel of an input image. If the input image is a white coloured image, what will the output image look like? Select one: a. The image gradually changes from black (on the left) to white (on the right) b. The image gradually changes from white (on top) to black (at the bottom) c. The image gradually changes from black (on top) to white (at the bottom) d. The output image will be purely grey in colour e. The image gradually changes from white (on the left) to black (on the right) Clear my choice Which of the following statements about the OpenCL fundamental data structures is/are FALSE? 1. Kernels are functions that run on platforms. 2. Command queues are used by the host to send commands to devices. 3. An OpenCL host can only access one device at a time. Select one: a. 1 only. b. 2 only c. 2 and 3 d. 1 and 2 e. 1 and 3 Clear my choice Which of the following statements is TRUE? Select one: a. If no image access qualifier is specified for a kernel image parameter, the default is read_only b. A kernel can have both read and write access to an image object c. Image objects can be passed the kernel using local memory d. If no address space qualifier is specified for a kernel parameter, the default is global e. Reading values beyond the boundaries of an image object will cause a segmentation fault Clear my choice
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