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Xeon Phi 64-bit Atomics

Simon_S_1
Beginner
191 Views

Hello,

the Xeon Phi does only support the following extensions: cl_khr_icd cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_spir cl_khr_fp64

That means we are not able to use 64-bit atomic operations. Is there any possibility to use atomics for 64-bits? (cl_khr_int64_base_atomics)

That is absolutely necessary for many scientific applications, because float does not suffices in precision.

Regards, Simon Scholl

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1 Solution
Yuri_K_Intel
Employee
191 Views
Hi Simon, Sorry, but I can only confirm that 64-bit atomics are not supported by Xeon Phi. Thanks, Yuri

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Yuri_K_Intel
Employee
192 Views
Hi Simon, Sorry, but I can only confirm that 64-bit atomics are not supported by Xeon Phi. Thanks, Yuri
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